See the xfs man page in section 5 for additional information.
If unsure, say N.
+
+config XFS_DEBUG
+ bool "XFS Debugging support (EXPERIMENTAL)"
+ depends on XFS_FS && EXPERIMENTAL
+ help
+ Say Y here to get an XFS build with many debugging features,
+ including ASSERT checks, function wrappers around macros,
+ and extra sanity-checking functions in various code paths.
+
+ Note that the resulting code will be HUGE and SLOW, and probably
+ not useful unless you are debugging a particular problem.
+
+ Say N unless you are an XFS developer, or you play one on TV.
#include <linux/rwsem.h>
-enum { MR_NONE, MR_ACCESS, MR_UPDATE };
-
typedef struct {
struct rw_semaphore mr_lock;
+#ifdef DEBUG
int mr_writer;
+#endif
} mrlock_t;
+#ifdef DEBUG
#define mrinit(mrp, name) \
do { (mrp)->mr_writer = 0; init_rwsem(&(mrp)->mr_lock); } while (0)
+#else
+#define mrinit(mrp, name) \
+ do { init_rwsem(&(mrp)->mr_lock); } while (0)
+#endif
+
#define mrlock_init(mrp, t,n,s) mrinit(mrp, n)
#define mrfree(mrp) do { } while (0)
-static inline void mraccess(mrlock_t *mrp)
-{
- down_read(&mrp->mr_lock);
-}
-
-static inline void mrupdate(mrlock_t *mrp)
-{
- down_write(&mrp->mr_lock);
- mrp->mr_writer = 1;
-}
-
static inline void mraccess_nested(mrlock_t *mrp, int subclass)
{
down_read_nested(&mrp->mr_lock, subclass);
static inline void mrupdate_nested(mrlock_t *mrp, int subclass)
{
down_write_nested(&mrp->mr_lock, subclass);
+#ifdef DEBUG
mrp->mr_writer = 1;
+#endif
}
-
static inline int mrtryaccess(mrlock_t *mrp)
{
return down_read_trylock(&mrp->mr_lock);
{
if (!down_write_trylock(&mrp->mr_lock))
return 0;
+#ifdef DEBUG
mrp->mr_writer = 1;
+#endif
return 1;
}
-static inline void mrunlock(mrlock_t *mrp)
+static inline void mrunlock_excl(mrlock_t *mrp)
{
- if (mrp->mr_writer) {
- mrp->mr_writer = 0;
- up_write(&mrp->mr_lock);
- } else {
- up_read(&mrp->mr_lock);
- }
+#ifdef DEBUG
+ mrp->mr_writer = 0;
+#endif
+ up_write(&mrp->mr_lock);
}
-static inline void mrdemote(mrlock_t *mrp)
+static inline void mrunlock_shared(mrlock_t *mrp)
{
- mrp->mr_writer = 0;
- downgrade_write(&mrp->mr_lock);
+ up_read(&mrp->mr_lock);
}
-#ifdef DEBUG
-/*
- * Debug-only routine, without some platform-specific asm code, we can
- * now only answer requests regarding whether we hold the lock for write
- * (reader state is outside our visibility, we only track writer state).
- * Note: means !ismrlocked would give false positives, so don't do that.
- */
-static inline int ismrlocked(mrlock_t *mrp, int type)
+static inline void mrdemote(mrlock_t *mrp)
{
- if (mrp && type == MR_UPDATE)
- return mrp->mr_writer;
- return 1;
-}
+#ifdef DEBUG
+ mrp->mr_writer = 0;
#endif
+ downgrade_write(&mrp->mr_lock);
+}
#endif /* __XFS_SUPPORT_MRLOCK_H__ */
xfs_buf_lock_value(
xfs_buf_t *bp)
{
- return atomic_read(&bp->b_sema.count);
+ return bp->b_sema.count;
}
#endif
if (!ip)
return ERR_PTR(-EIO);
- if (!ip->i_d.di_mode || ip->i_d.di_gen != generation) {
+ if (ip->i_d.di_gen != generation) {
xfs_iput_new(ip, XFS_ILOCK_SHARED);
return ERR_PTR(-ENOENT);
}
#include <linux/smp_lock.h>
static struct vm_operations_struct xfs_file_vm_ops;
-#ifdef CONFIG_XFS_DMAPI
-static struct vm_operations_struct xfs_dmapi_file_vm_ops;
-#endif
STATIC_INLINE ssize_t
__xfs_file_read(
(xfs_off_t)0, (xfs_off_t)-1);
}
-#ifdef CONFIG_XFS_DMAPI
-STATIC int
-xfs_vm_fault(
- struct vm_area_struct *vma,
- struct vm_fault *vmf)
-{
- struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
- bhv_vnode_t *vp = vn_from_inode(inode);
-
- ASSERT_ALWAYS(vp->v_vfsp->vfs_flag & VFS_DMI);
- if (XFS_SEND_MMAP(XFS_VFSTOM(vp->v_vfsp), vma, 0))
- return VM_FAULT_SIGBUS;
- return filemap_fault(vma, vmf);
-}
-#endif /* CONFIG_XFS_DMAPI */
-
/*
* Unfortunately we can't just use the clean and simple readdir implementation
* below, because nfs might call back into ->lookup from the filldir callback
vma->vm_ops = &xfs_file_vm_ops;
vma->vm_flags |= VM_CAN_NONLINEAR;
-#ifdef CONFIG_XFS_DMAPI
- if (XFS_M(filp->f_path.dentry->d_inode->i_sb)->m_flags & XFS_MOUNT_DMAPI)
- vma->vm_ops = &xfs_dmapi_file_vm_ops;
-#endif /* CONFIG_XFS_DMAPI */
-
file_accessed(filp);
return 0;
}
return error;
}
-#ifdef CONFIG_XFS_DMAPI
-#ifdef HAVE_VMOP_MPROTECT
-STATIC int
-xfs_vm_mprotect(
- struct vm_area_struct *vma,
- unsigned int newflags)
-{
- struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
- struct xfs_mount *mp = XFS_M(inode->i_sb);
- int error = 0;
-
- if (mp->m_flags & XFS_MOUNT_DMAPI) {
- if ((vma->vm_flags & VM_MAYSHARE) &&
- (newflags & VM_WRITE) && !(vma->vm_flags & VM_WRITE))
- error = XFS_SEND_MMAP(mp, vma, VM_WRITE);
- }
- return error;
-}
-#endif /* HAVE_VMOP_MPROTECT */
-#endif /* CONFIG_XFS_DMAPI */
-
-#ifdef HAVE_FOP_OPEN_EXEC
-/* If the user is attempting to execute a file that is offline then
- * we have to trigger a DMAPI READ event before the file is marked as busy
- * otherwise the invisible I/O will not be able to write to the file to bring
- * it back online.
- */
-STATIC int
-xfs_file_open_exec(
- struct inode *inode)
-{
- struct xfs_mount *mp = XFS_M(inode->i_sb);
- struct xfs_inode *ip = XFS_I(inode);
-
- if (unlikely(mp->m_flags & XFS_MOUNT_DMAPI) &&
- DM_EVENT_ENABLED(ip, DM_EVENT_READ))
- return -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, 0, 0, 0, NULL);
- return 0;
-}
-#endif /* HAVE_FOP_OPEN_EXEC */
-
/*
* mmap()d file has taken write protection fault and is being made
* writable. We can set the page state up correctly for a writable
.fault = filemap_fault,
.page_mkwrite = xfs_vm_page_mkwrite,
};
-
-#ifdef CONFIG_XFS_DMAPI
-static struct vm_operations_struct xfs_dmapi_file_vm_ops = {
- .fault = xfs_vm_fault,
- .page_mkwrite = xfs_vm_page_mkwrite,
-#ifdef HAVE_VMOP_MPROTECT
- .mprotect = xfs_vm_mprotect,
-#endif
-};
-#endif /* CONFIG_XFS_DMAPI */
return error;
if (ip == NULL)
return XFS_ERROR(EIO);
- if (ip->i_d.di_mode == 0 || ip->i_d.di_gen != igen) {
+ if (ip->i_d.di_gen != igen) {
xfs_iput_new(ip, XFS_ILOCK_SHARED);
return XFS_ERROR(ENOENT);
}
{
char *kbuf;
int error = EFAULT;
-
+
if (*len > XATTR_SIZE_MAX)
return EINVAL;
kbuf = kmalloc(*len, GFP_KERNEL);
if (!kbuf)
return ENOMEM;
- error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags, NULL);
+ error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags);
if (error)
goto out_kfree;
if (copy_from_user(kbuf, ubuf, len))
goto out_kfree;
-
+
error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags);
out_kfree:
xfs_dentry_to_name(&nname, ndentry);
error = xfs_rename(XFS_I(odir), &oname, XFS_I(odentry->d_inode),
- XFS_I(ndir), &nname);
+ XFS_I(ndir), &nname, new_inode ?
+ XFS_I(new_inode) : NULL);
if (likely(!error)) {
if (new_inode)
xfs_validate_fields(new_inode);
/*
* Feature macros (disable/enable)
*/
-#define HAVE_SPLICE /* a splice(2) exists in 2.6, but not in 2.4 */
#ifdef CONFIG_SMP
#define HAVE_PERCPU_SB /* per cpu superblock counters are a 2.6 feature */
#else
int error = 0;
xfs_bmbt_irec_t imap;
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
zero_offset = XFS_B_FSB_OFFSET(mp, isize);
if (zero_offset == 0) {
* out sync. We need to drop the ilock while we do this so we
* don't deadlock when the buffer cache calls back to us.
*/
- xfs_iunlock(ip, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
zero_len = mp->m_sb.sb_blocksize - zero_offset;
if (isize + zero_len > offset)
zero_len = offset - isize;
error = xfs_iozero(ip, isize, zero_len);
- xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
ASSERT(error >= 0);
return error;
}
int error = 0;
xfs_bmbt_irec_t imap;
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
- ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
ASSERT(offset > isize);
/*
*/
error = xfs_zero_last_block(ip, offset, isize);
if (error) {
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
- ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
return error;
}
error = xfs_bmapi(NULL, ip, start_zero_fsb, zero_count_fsb,
0, NULL, 0, &imap, &nimaps, NULL, NULL);
if (error) {
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
- ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
return error;
}
ASSERT(nimaps > 0);
* Drop the inode lock while we're doing the I/O.
* We'll still have the iolock to protect us.
*/
- xfs_iunlock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
zero_off = XFS_FSB_TO_B(mp, start_zero_fsb);
zero_len = XFS_FSB_TO_B(mp, imap.br_blockcount);
start_zero_fsb = imap.br_startoff + imap.br_blockcount;
ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
- xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
}
return 0;
out_lock:
- xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
ASSERT(error >= 0);
return error;
}
#define XFS_INVAL_CACHED 18
#define XFS_DIORD_ENTER 19
#define XFS_DIOWR_ENTER 20
-#define XFS_SENDFILE_ENTER 21
#define XFS_WRITEPAGE_ENTER 22
#define XFS_RELEASEPAGE_ENTER 23
#define XFS_INVALIDPAGE_ENTER 24
statp->f_fsid.val[0] = (u32)id;
statp->f_fsid.val[1] = (u32)(id >> 32);
- xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT);
+ xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT);
spin_lock(&mp->m_sb_lock);
statp->f_bsize = sbp->sb_blocksize;
typedef struct inode bhv_vnode_t;
-#define VN_ISLNK(vp) S_ISLNK((vp)->i_mode)
-#define VN_ISREG(vp) S_ISREG((vp)->i_mode)
-#define VN_ISDIR(vp) S_ISDIR((vp)->i_mode)
-#define VN_ISCHR(vp) S_ISCHR((vp)->i_mode)
-#define VN_ISBLK(vp) S_ISBLK((vp)->i_mode)
-
/*
* Vnode to Linux inode mapping.
*/
XFS_AT_TYPE|XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|\
XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_GENCOUNT)
-/*
- * Modes.
- */
-#define VSUID S_ISUID /* set user id on execution */
-#define VSGID S_ISGID /* set group id on execution */
-#define VSVTX S_ISVTX /* save swapped text even after use */
-#define VREAD S_IRUSR /* read, write, execute permissions */
-#define VWRITE S_IWUSR
-#define VEXEC S_IXUSR
-
-#define MODEMASK S_IALLUGO /* mode bits plus permission bits */
-
-/*
- * Check whether mandatory file locking is enabled.
- */
-#define MANDLOCK(vp, mode) \
- (VN_ISREG(vp) && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
-
extern void vn_init(void);
extern int vn_revalidate(bhv_vnode_t *);
type == XFS_DQ_PROJ ||
type == XFS_DQ_GROUP);
if (ip) {
- ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
if (type == XFS_DQ_USER)
ASSERT(ip->i_udquot == NULL);
else
xfs_qm_mplist_unlock(mp);
XFS_DQ_HASH_UNLOCK(h);
dqret:
- ASSERT((ip == NULL) || XFS_ISLOCKED_INODE_EXCL(ip));
+ ASSERT((ip == NULL) || xfs_isilocked(ip, XFS_ILOCK_EXCL));
xfs_dqtrace_entry(dqp, "DQGET DONE");
*O_dqpp = dqp;
return (0);
xfs_dquot_t *dqp;
int error;
- ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
error = 0;
/*
* See if we already have it in the inode itself. IO_idqpp is
return 0;
ASSERT((flags & XFS_QMOPT_ILOCKED) == 0 ||
- XFS_ISLOCKED_INODE_EXCL(ip));
+ xfs_isilocked(ip, XFS_ILOCK_EXCL));
if (! (flags & XFS_QMOPT_ILOCKED))
xfs_ilock(ip, XFS_ILOCK_EXCL);
goto done;
nquotas++;
}
- ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
if (XFS_IS_OQUOTA_ON(mp)) {
error = XFS_IS_GQUOTA_ON(mp) ?
xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP,
* This WON'T, in general, result in a thrash.
*/
if (nquotas == 2) {
- ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(ip->i_udquot);
ASSERT(ip->i_gdquot);
#ifdef QUOTADEBUG
else
- ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
#endif
return error;
}
xfs_mount_t *mp;
xfs_dquot_t *udqp, *gdqp;
- ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
mp = ip->i_mount;
udqp = NULL;
gdqp = NULL;
* Keep an extra reference to this quota inode. This inode is
* locked exclusively and joined to the transaction already.
*/
- ASSERT(XFS_ISLOCKED_INODE_EXCL(*ip));
+ ASSERT(xfs_isilocked(*ip, XFS_ILOCK_EXCL));
VN_HOLD(XFS_ITOV((*ip)));
/*
return error;
}
- if (ip->i_d.di_mode == 0) {
- xfs_iput_new(ip, XFS_ILOCK_EXCL);
- *res = BULKSTAT_RV_NOTHING;
- return XFS_ERROR(ENOENT);
- }
-
/*
* Obtain the locked dquots. In case of an error (eg. allocation
* fails for ENOSPC), we return the negative of the error number
uint bfield = XFS_IS_REALTIME_INODE(ip) ?
XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT;
- ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
/* old dquot */
uint delblks, blkflags, prjflags = 0;
xfs_dquot_t *unresudq, *unresgdq, *delblksudq, *delblksgdq;
- ASSERT(XFS_ISLOCKED_INODE(ip));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
mp = ip->i_mount;
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
if (!XFS_IS_QUOTA_ON(tp->t_mountp))
return;
- ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp));
if (udqp) {
return (error);
}
- if (ip->i_d.di_mode == 0) {
- xfs_iput_new(ip, lock_flags);
- *res = BULKSTAT_RV_NOTHING;
- return XFS_ERROR(ENOENT);
- }
-
/*
* This inode can have blocks after eof which can get released
* when we send it to inactive. Since we don't check the dquot
/* Number of dquots that fit in to a dquot block */
#define XFS_QM_DQPERBLK(mp) ((mp)->m_quotainfo->qi_dqperchunk)
-#define XFS_ISLOCKED_INODE(ip) (ismrlocked(&(ip)->i_lock, \
- MR_UPDATE | MR_ACCESS) != 0)
-#define XFS_ISLOCKED_INODE_EXCL(ip) (ismrlocked(&(ip)->i_lock, \
- MR_UPDATE) != 0)
-
#define XFS_DQ_IS_ADDEDTO_TRX(t, d) ((d)->q_transp == (t))
#define XFS_QI_MPLRECLAIMS(mp) ((mp)->m_quotainfo->qi_dqreclaims)
ASSERT(ip->i_ino != mp->m_sb.sb_uquotino);
ASSERT(ip->i_ino != mp->m_sb.sb_gquotino);
- ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
XFS_TRANS_DQ_RES_RTBLKS ||
#define STATIC
#define DEBUG 1
#define XFS_BUF_LOCK_TRACKING 1
-#define QUOTADEBUG 1
+/* #define QUOTADEBUG 1 */
#endif
#ifdef CONFIG_XFS_TRACE
{
int error;
- if (!VN_ISDIR(vp))
+ if (!S_ISDIR(vp->i_mode))
return 0;
xfs_acl_get_attr(vp, NULL, _ACL_TYPE_DEFAULT, ATTR_KERNOVAL, &error);
return (error == 0);
error = EINVAL;
goto out;
}
- if (kind == _ACL_TYPE_ACCESS) {
- bhv_vattr_t va;
-
- va.va_mask = XFS_AT_MODE;
- error = xfs_getattr(xfs_vtoi(vp), &va, 0);
- if (error)
- goto out;
- xfs_acl_sync_mode(va.va_mode, xfs_acl);
- }
+ if (kind == _ACL_TYPE_ACCESS)
+ xfs_acl_sync_mode(xfs_vtoi(vp)->i_d.di_mode, xfs_acl);
error = -posix_acl_xfs_to_xattr(xfs_acl, ext_acl, size);
}
out:
{
xfs_acl_t *acl;
int rval;
+ struct xfs_name acl_name = {SGI_ACL_FILE, SGI_ACL_FILE_SIZE};
if (!(_ACL_ALLOC(acl)))
return -1;
/* If the file has no ACL return -1. */
rval = sizeof(xfs_acl_t);
- if (xfs_attr_fetch(ip, SGI_ACL_FILE, SGI_ACL_FILE_SIZE,
- (char *)acl, &rval, ATTR_ROOT | ATTR_KERNACCESS, cr)) {
+ if (xfs_attr_fetch(ip, &acl_name, (char *)acl, &rval,
+ ATTR_ROOT | ATTR_KERNACCESS)) {
_ACL_FREE(acl);
return -1;
}
bhv_vnode_t *vp,
int kind)
{
- xfs_inode_t *ip = xfs_vtoi(vp);
- bhv_vattr_t va;
- int error;
-
if (vp->i_flags & (S_IMMUTABLE|S_APPEND))
return EPERM;
- if (kind == _ACL_TYPE_DEFAULT && !VN_ISDIR(vp))
+ if (kind == _ACL_TYPE_DEFAULT && !S_ISDIR(vp->i_mode))
return ENOTDIR;
if (vp->i_sb->s_flags & MS_RDONLY)
return EROFS;
- va.va_mask = XFS_AT_UID;
- error = xfs_getattr(ip, &va, 0);
- if (error)
- return error;
- if (va.va_uid != current->fsuid && !capable(CAP_FOWNER))
+ if (xfs_vtoi(vp)->i_d.di_uid != current->fsuid && !capable(CAP_FOWNER))
return EPERM;
- return error;
+ return 0;
}
/*
*error = xfs_attr_get(xfs_vtoi(vp),
kind == _ACL_TYPE_ACCESS ?
SGI_ACL_FILE : SGI_ACL_DEFAULT,
- (char *)aclp, &len, flags, sys_cred);
+ (char *)aclp, &len, flags);
if (*error || (flags & ATTR_KERNOVAL))
return;
xfs_acl_get_endian(aclp);
xfs_acl_t *access_acl,
xfs_acl_t *default_acl)
{
- bhv_vattr_t va;
int error = 0;
if (access_acl) {
* be obtained for some reason, invalidate the access ACL.
*/
xfs_acl_get_attr(vp, access_acl, _ACL_TYPE_ACCESS, 0, &error);
- if (!error) {
- /* Got the ACL, need the mode... */
- va.va_mask = XFS_AT_MODE;
- error = xfs_getattr(xfs_vtoi(vp), &va, 0);
- }
-
if (error)
access_acl->acl_cnt = XFS_ACL_NOT_PRESENT;
else /* We have a good ACL and the file mode, synchronize. */
- xfs_acl_sync_mode(va.va_mode, access_acl);
+ xfs_acl_sync_mode(xfs_vtoi(vp)->i_d.di_mode, access_acl);
}
if (default_acl) {
* If the new file is a directory, its default ACL is a copy of
* the containing directory's default ACL.
*/
- if (VN_ISDIR(vp))
+ if (S_ISDIR(vp->i_mode))
xfs_acl_set_attr(vp, pdaclp, _ACL_TYPE_DEFAULT, &error);
if (!error && !basicperms)
xfs_acl_set_attr(vp, cacl, _ACL_TYPE_ACCESS, &error);
bhv_vattr_t va;
xfs_acl_entry_t *ap;
xfs_acl_entry_t *gap = NULL;
- int i, error, nomask = 1;
+ int i, nomask = 1;
*basicperms = 1;
* mode. The m:: bits take precedence over the g:: bits.
*/
va.va_mask = XFS_AT_MODE;
- error = xfs_getattr(xfs_vtoi(vp), &va, 0);
- if (error)
- return error;
-
- va.va_mask = XFS_AT_MODE;
+ va.va_mode = xfs_vtoi(vp)->i_d.di_mode;
va.va_mode &= ~(S_IRWXU|S_IRWXG|S_IRWXO);
ap = acl->acl_entry;
for (i = 0; i < acl->acl_cnt; ++i) {
ktrace_t *xfs_attr_trace_buf;
#endif
+STATIC int
+xfs_attr_name_to_xname(
+ struct xfs_name *xname,
+ const char *aname)
+{
+ if (!aname)
+ return EINVAL;
+ xname->name = aname;
+ xname->len = strlen(aname);
+ if (xname->len >= MAXNAMELEN)
+ return EFAULT; /* match IRIX behaviour */
+
+ return 0;
+}
/*========================================================================
* Overall external interface routines.
*========================================================================*/
int
-xfs_attr_fetch(xfs_inode_t *ip, const char *name, int namelen,
- char *value, int *valuelenp, int flags, struct cred *cred)
+xfs_attr_fetch(xfs_inode_t *ip, struct xfs_name *name,
+ char *value, int *valuelenp, int flags)
{
xfs_da_args_t args;
int error;
* Fill in the arg structure for this request.
*/
memset((char *)&args, 0, sizeof(args));
- args.name = name;
- args.namelen = namelen;
+ args.name = name->name;
+ args.namelen = name->len;
args.value = value;
args.valuelen = *valuelenp;
args.flags = flags;
const char *name,
char *value,
int *valuelenp,
- int flags,
- cred_t *cred)
+ int flags)
{
- int error, namelen;
+ int error;
+ struct xfs_name xname;
XFS_STATS_INC(xs_attr_get);
- if (!name)
- return(EINVAL);
- namelen = strlen(name);
- if (namelen >= MAXNAMELEN)
- return(EFAULT); /* match IRIX behaviour */
-
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return(EIO);
+ error = xfs_attr_name_to_xname(&xname, name);
+ if (error)
+ return error;
+
xfs_ilock(ip, XFS_ILOCK_SHARED);
- error = xfs_attr_fetch(ip, name, namelen, value, valuelenp, flags, cred);
+ error = xfs_attr_fetch(ip, &xname, value, valuelenp, flags);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return(error);
}
-int
-xfs_attr_set_int(xfs_inode_t *dp, const char *name, int namelen,
- char *value, int valuelen, int flags)
+STATIC int
+xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
+ char *value, int valuelen, int flags)
{
xfs_da_args_t args;
xfs_fsblock_t firstblock;
*/
if (XFS_IFORK_Q(dp) == 0) {
int sf_size = sizeof(xfs_attr_sf_hdr_t) +
- XFS_ATTR_SF_ENTSIZE_BYNAME(namelen, valuelen);
+ XFS_ATTR_SF_ENTSIZE_BYNAME(name->len, valuelen);
if ((error = xfs_bmap_add_attrfork(dp, sf_size, rsvd)))
return(error);
* Fill in the arg structure for this request.
*/
memset((char *)&args, 0, sizeof(args));
- args.name = name;
- args.namelen = namelen;
+ args.name = name->name;
+ args.namelen = name->len;
args.value = value;
args.valuelen = valuelen;
args.flags = flags;
* Determine space new attribute will use, and if it would be
* "local" or "remote" (note: local != inline).
*/
- size = xfs_attr_leaf_newentsize(namelen, valuelen,
+ size = xfs_attr_leaf_newentsize(name->len, valuelen,
mp->m_sb.sb_blocksize, &local);
nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
int valuelen,
int flags)
{
- int namelen;
-
- namelen = strlen(name);
- if (namelen >= MAXNAMELEN)
- return EFAULT; /* match IRIX behaviour */
+ int error;
+ struct xfs_name xname;
XFS_STATS_INC(xs_attr_set);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return (EIO);
- return xfs_attr_set_int(dp, name, namelen, value, valuelen, flags);
+ error = xfs_attr_name_to_xname(&xname, name);
+ if (error)
+ return error;
+
+ return xfs_attr_set_int(dp, &xname, value, valuelen, flags);
}
/*
* Generic handler routine to remove a name from an attribute list.
* Transitions attribute list from Btree to shortform as necessary.
*/
-int
-xfs_attr_remove_int(xfs_inode_t *dp, const char *name, int namelen, int flags)
+STATIC int
+xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags)
{
xfs_da_args_t args;
xfs_fsblock_t firstblock;
* Fill in the arg structure for this request.
*/
memset((char *)&args, 0, sizeof(args));
- args.name = name;
- args.namelen = namelen;
+ args.name = name->name;
+ args.namelen = name->len;
args.flags = flags;
args.hashval = xfs_da_hashname(args.name, args.namelen);
args.dp = dp;
const char *name,
int flags)
{
- int namelen;
-
- namelen = strlen(name);
- if (namelen >= MAXNAMELEN)
- return EFAULT; /* match IRIX behaviour */
+ int error;
+ struct xfs_name xname;
XFS_STATS_INC(xs_attr_remove);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return (EIO);
+ error = xfs_attr_name_to_xname(&xname, name);
+ if (error)
+ return error;
+
xfs_ilock(dp, XFS_ILOCK_SHARED);
if (XFS_IFORK_Q(dp) == 0 ||
(dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
}
xfs_iunlock(dp, XFS_ILOCK_SHARED);
- return xfs_attr_remove_int(dp, name, namelen, flags);
+ return xfs_attr_remove_int(dp, &xname, flags);
}
-int /* error */
+STATIC int
xfs_attr_list_int(xfs_attr_list_context_t *context)
{
int error;
{
int error, asize = size;
- error = xfs_attr_get(xfs_vtoi(vp), name, data,
- &asize, xflags, NULL);
+ error = xfs_attr_get(xfs_vtoi(vp), name, data, &asize, xflags);
if (!error)
return asize;
return -error;
/*
* Overall external interface routines.
*/
-int xfs_attr_set_int(struct xfs_inode *, const char *, int, char *, int, int);
-int xfs_attr_remove_int(struct xfs_inode *, const char *, int, int);
-int xfs_attr_list_int(struct xfs_attr_list_context *);
int xfs_attr_inactive(struct xfs_inode *dp);
int xfs_attr_shortform_getvalue(struct xfs_da_args *);
-int xfs_attr_fetch(struct xfs_inode *, const char *, int,
- char *, int *, int, struct cred *);
+int xfs_attr_fetch(struct xfs_inode *, struct xfs_name *, char *, int *, int);
int xfs_attr_rmtval_get(struct xfs_da_args *args);
#endif /* __XFS_ATTR_H__ */
error2:
xfs_bmap_cancel(&flist);
error1:
- ASSERT(ismrlocked(&ip->i_lock,MR_UPDATE));
xfs_iunlock(ip, XFS_ILOCK_EXCL);
error0:
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
ips[1] = ip;
}
- xfs_lock_inodes(ips, 2, 0, lock_flags);
+ xfs_lock_inodes(ips, 2, lock_flags);
locked = 1;
/* Verify that both files have the same format */
locked = 0;
goto error0;
}
- xfs_lock_inodes(ips, 2, 0, XFS_ILOCK_EXCL);
+ xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
/*
* Count the number of extended attribute blocks
xfs_mount_t *mp,
xfs_fsop_counts_t *cnt)
{
- xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT);
+ xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT);
spin_lock(&mp->m_sb_lock);
cnt->freedata = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
cnt->freertx = mp->m_sb.sb_frextents;
*/
retry:
spin_lock(&mp->m_sb_lock);
- xfs_icsb_sync_counters_flags(mp, XFS_ICSB_SB_LOCKED);
+ xfs_icsb_sync_counters_locked(mp, 0);
/*
* If our previous reservation was larger than the current value,
mp->m_resblks += free;
mp->m_resblks_avail += free;
fdblks_delta = -free;
- mp->m_sb.sb_fdblocks = XFS_ALLOC_SET_ASIDE(mp);
} else {
fdblks_delta = -delta;
- mp->m_sb.sb_fdblocks =
- lcounter + XFS_ALLOC_SET_ASIDE(mp);
mp->m_resblks = request;
mp->m_resblks_avail += delta;
}
if (error == ENOSPC)
goto retry;
}
-
return 0;
}
int version; /* inode version number to use */
int isaligned = 0; /* inode allocation at stripe unit */
/* boundary */
+ unsigned int gen;
args.tp = tp;
args.mp = tp->t_mountp;
else
version = XFS_DINODE_VERSION_1;
+ /*
+ * Seed the new inode cluster with a random generation number. This
+ * prevents short-term reuse of generation numbers if a chunk is
+ * freed and then immediately reallocated. We use random numbers
+ * rather than a linear progression to prevent the next generation
+ * number from being easily guessable.
+ */
+ gen = random32();
for (j = 0; j < nbufs; j++) {
/*
* Get the block.
free = XFS_MAKE_IPTR(args.mp, fbuf, i);
free->di_core.di_magic = cpu_to_be16(XFS_DINODE_MAGIC);
free->di_core.di_version = version;
+ free->di_core.di_gen = cpu_to_be32(gen);
free->di_next_unlinked = cpu_to_be32(NULLAGINO);
xfs_ialloc_log_di(tp, fbuf, i,
XFS_DI_CORE_BITS | XFS_DI_NEXT_UNLINKED);
* XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL
*/
void
-xfs_ilock(xfs_inode_t *ip,
- uint lock_flags)
+xfs_ilock(
+ xfs_inode_t *ip,
+ uint lock_flags)
{
/*
* You can't set both SHARED and EXCL for the same lock,
(XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_LOCK_DEP_MASK)) == 0);
- if (lock_flags & XFS_IOLOCK_EXCL) {
+ if (lock_flags & XFS_IOLOCK_EXCL)
mrupdate_nested(&ip->i_iolock, XFS_IOLOCK_DEP(lock_flags));
- } else if (lock_flags & XFS_IOLOCK_SHARED) {
+ else if (lock_flags & XFS_IOLOCK_SHARED)
mraccess_nested(&ip->i_iolock, XFS_IOLOCK_DEP(lock_flags));
- }
- if (lock_flags & XFS_ILOCK_EXCL) {
+
+ if (lock_flags & XFS_ILOCK_EXCL)
mrupdate_nested(&ip->i_lock, XFS_ILOCK_DEP(lock_flags));
- } else if (lock_flags & XFS_ILOCK_SHARED) {
+ else if (lock_flags & XFS_ILOCK_SHARED)
mraccess_nested(&ip->i_lock, XFS_ILOCK_DEP(lock_flags));
- }
+
xfs_ilock_trace(ip, 1, lock_flags, (inst_t *)__return_address);
}
* lock_flags -- this parameter indicates the inode's locks to be
* to be locked. See the comment for xfs_ilock() for a list
* of valid values.
- *
*/
int
-xfs_ilock_nowait(xfs_inode_t *ip,
- uint lock_flags)
+xfs_ilock_nowait(
+ xfs_inode_t *ip,
+ uint lock_flags)
{
- int iolocked;
- int ilocked;
-
/*
* You can't set both SHARED and EXCL for the same lock,
* and only XFS_IOLOCK_SHARED, XFS_IOLOCK_EXCL, XFS_ILOCK_SHARED,
(XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_LOCK_DEP_MASK)) == 0);
- iolocked = 0;
if (lock_flags & XFS_IOLOCK_EXCL) {
- iolocked = mrtryupdate(&ip->i_iolock);
- if (!iolocked) {
- return 0;
- }
+ if (!mrtryupdate(&ip->i_iolock))
+ goto out;
} else if (lock_flags & XFS_IOLOCK_SHARED) {
- iolocked = mrtryaccess(&ip->i_iolock);
- if (!iolocked) {
- return 0;
- }
+ if (!mrtryaccess(&ip->i_iolock))
+ goto out;
}
if (lock_flags & XFS_ILOCK_EXCL) {
- ilocked = mrtryupdate(&ip->i_lock);
- if (!ilocked) {
- if (iolocked) {
- mrunlock(&ip->i_iolock);
- }
- return 0;
- }
+ if (!mrtryupdate(&ip->i_lock))
+ goto out_undo_iolock;
} else if (lock_flags & XFS_ILOCK_SHARED) {
- ilocked = mrtryaccess(&ip->i_lock);
- if (!ilocked) {
- if (iolocked) {
- mrunlock(&ip->i_iolock);
- }
- return 0;
- }
+ if (!mrtryaccess(&ip->i_lock))
+ goto out_undo_iolock;
}
xfs_ilock_trace(ip, 2, lock_flags, (inst_t *)__return_address);
return 1;
+
+ out_undo_iolock:
+ if (lock_flags & XFS_IOLOCK_EXCL)
+ mrunlock_excl(&ip->i_iolock);
+ else if (lock_flags & XFS_IOLOCK_SHARED)
+ mrunlock_shared(&ip->i_iolock);
+ out:
+ return 0;
}
/*
*
*/
void
-xfs_iunlock(xfs_inode_t *ip,
- uint lock_flags)
+xfs_iunlock(
+ xfs_inode_t *ip,
+ uint lock_flags)
{
/*
* You can't set both SHARED and EXCL for the same lock,
XFS_LOCK_DEP_MASK)) == 0);
ASSERT(lock_flags != 0);
- if (lock_flags & (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL)) {
- ASSERT(!(lock_flags & XFS_IOLOCK_SHARED) ||
- (ismrlocked(&ip->i_iolock, MR_ACCESS)));
- ASSERT(!(lock_flags & XFS_IOLOCK_EXCL) ||
- (ismrlocked(&ip->i_iolock, MR_UPDATE)));
- mrunlock(&ip->i_iolock);
- }
+ if (lock_flags & XFS_IOLOCK_EXCL)
+ mrunlock_excl(&ip->i_iolock);
+ else if (lock_flags & XFS_IOLOCK_SHARED)
+ mrunlock_shared(&ip->i_iolock);
- if (lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) {
- ASSERT(!(lock_flags & XFS_ILOCK_SHARED) ||
- (ismrlocked(&ip->i_lock, MR_ACCESS)));
- ASSERT(!(lock_flags & XFS_ILOCK_EXCL) ||
- (ismrlocked(&ip->i_lock, MR_UPDATE)));
- mrunlock(&ip->i_lock);
+ if (lock_flags & XFS_ILOCK_EXCL)
+ mrunlock_excl(&ip->i_lock);
+ else if (lock_flags & XFS_ILOCK_SHARED)
+ mrunlock_shared(&ip->i_lock);
+ if ((lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) &&
+ !(lock_flags & XFS_IUNLOCK_NONOTIFY) && ip->i_itemp) {
/*
* Let the AIL know that this item has been unlocked in case
* it is in the AIL and anyone is waiting on it. Don't do
* this if the caller has asked us not to.
*/
- if (!(lock_flags & XFS_IUNLOCK_NONOTIFY) &&
- ip->i_itemp != NULL) {
- xfs_trans_unlocked_item(ip->i_mount,
- (xfs_log_item_t*)(ip->i_itemp));
- }
+ xfs_trans_unlocked_item(ip->i_mount,
+ (xfs_log_item_t*)(ip->i_itemp));
}
xfs_ilock_trace(ip, 3, lock_flags, (inst_t *)__return_address);
}
* if it is being demoted.
*/
void
-xfs_ilock_demote(xfs_inode_t *ip,
- uint lock_flags)
+xfs_ilock_demote(
+ xfs_inode_t *ip,
+ uint lock_flags)
{
ASSERT(lock_flags & (XFS_IOLOCK_EXCL|XFS_ILOCK_EXCL));
ASSERT((lock_flags & ~(XFS_IOLOCK_EXCL|XFS_ILOCK_EXCL)) == 0);
- if (lock_flags & XFS_ILOCK_EXCL) {
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+ if (lock_flags & XFS_ILOCK_EXCL)
mrdemote(&ip->i_lock);
- }
- if (lock_flags & XFS_IOLOCK_EXCL) {
- ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
+ if (lock_flags & XFS_IOLOCK_EXCL)
mrdemote(&ip->i_iolock);
+}
+
+#ifdef DEBUG
+/*
+ * Debug-only routine, without additional rw_semaphore APIs, we can
+ * now only answer requests regarding whether we hold the lock for write
+ * (reader state is outside our visibility, we only track writer state).
+ *
+ * Note: this means !xfs_isilocked would give false positives, so don't do that.
+ */
+int
+xfs_isilocked(
+ xfs_inode_t *ip,
+ uint lock_flags)
+{
+ if ((lock_flags & (XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)) ==
+ XFS_ILOCK_EXCL) {
+ if (!ip->i_lock.mr_writer)
+ return 0;
}
+
+ if ((lock_flags & (XFS_IOLOCK_EXCL|XFS_IOLOCK_SHARED)) ==
+ XFS_IOLOCK_EXCL) {
+ if (!ip->i_iolock.mr_writer)
+ return 0;
+ }
+
+ return 1;
}
+#endif
/*
* The following three routines simply manage the i_flock
xfs_fileoff_t size_last_block;
int error;
- ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE | MR_ACCESS));
+ ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL|XFS_IOLOCK_SHARED));
mp = ip->i_mount;
/*
bhv_vnode_t *vp;
int error = 0;
- ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE) != 0);
+ ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
ASSERT((new_size == 0) || (new_size <= ip->i_size));
ASSERT((flags == XFS_ITRUNC_DEFINITE) ||
(flags == XFS_ITRUNC_MAYBE));
xfs_bmap_free_t free_list;
int error;
- ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE) != 0);
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
ASSERT((new_size == 0) || (new_size <= ip->i_size));
ASSERT(*tp != NULL);
ASSERT((*tp)->t_flags & XFS_TRANS_PERM_LOG_RES);
xfs_fsize_t new_size,
cred_t *credp)
{
- ASSERT(ismrlocked(&(ip->i_lock), MR_UPDATE) != 0);
- ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE) != 0);
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
ASSERT(new_size > ip->i_size);
/*
xfs_fsize_t new_size,
int change_flag)
{
- ASSERT(ismrlocked(&(ip->i_lock), MR_UPDATE) != 0);
- ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE) != 0);
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
ASSERT(ip->i_transp == tp);
ASSERT(new_size > ip->i_size);
xfs_dinode_t *dip;
xfs_buf_t *ibp;
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(ip->i_transp == tp);
ASSERT(ip->i_d.di_nlink == 0);
ASSERT(ip->i_d.di_nextents == 0);
xfs_ipin(
xfs_inode_t *ip)
{
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
atomic_inc(&ip->i_pincount);
}
{
xfs_inode_log_item_t *iip = ip->i_itemp;
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE | MR_ACCESS));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
if (atomic_read(&ip->i_pincount) == 0)
return;
xfs_fsblock_t start_block;
ifp = XFS_IFORK_PTR(ip, whichfork);
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
ASSERT(ifp->if_bytes > 0);
nrecs = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
XFS_STATS_INC(xs_iflush_count);
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
ASSERT(issemalocked(&(ip->i_flock)));
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
ip->i_d.di_nextents > ip->i_df.if_ext_max);
int first;
#endif
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
ASSERT(issemalocked(&(ip->i_flock)));
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
ip->i_d.di_nextents > ip->i_df.if_ext_max);
#define XFS_ILOCK_EXCL (1<<2)
#define XFS_ILOCK_SHARED (1<<3)
#define XFS_IUNLOCK_NONOTIFY (1<<4)
-/* #define XFS_IOLOCK_NESTED (1<<5) */
-#define XFS_EXTENT_TOKEN_RD (1<<6)
-#define XFS_SIZE_TOKEN_RD (1<<7)
-#define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
-#define XFS_WILLLEND (1<<8) /* Always acquire tokens for lending */
-#define XFS_EXTENT_TOKEN_WR (XFS_EXTENT_TOKEN_RD | XFS_WILLLEND)
-#define XFS_SIZE_TOKEN_WR (XFS_SIZE_TOKEN_RD | XFS_WILLLEND)
-#define XFS_EXTSIZE_WR (XFS_EXTSIZE_RD | XFS_WILLLEND)
-/* TODO:XFS_SIZE_TOKEN_WANT (1<<9) */
#define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
- | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED \
- | XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD \
- | XFS_WILLLEND)
+ | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED)
/*
* Flags for lockdep annotations.
int xfs_ilock_nowait(xfs_inode_t *, uint);
void xfs_iunlock(xfs_inode_t *, uint);
void xfs_ilock_demote(xfs_inode_t *, uint);
+int xfs_isilocked(xfs_inode_t *, uint);
void xfs_iflock(xfs_inode_t *);
int xfs_iflock_nowait(xfs_inode_t *);
uint xfs_ilock_map_shared(xfs_inode_t *);
void xfs_iflush_all(struct xfs_mount *);
void xfs_ichgtime(xfs_inode_t *, int);
xfs_fsize_t xfs_file_last_byte(xfs_inode_t *);
-void xfs_lock_inodes(xfs_inode_t **, int, int, uint);
+void xfs_lock_inodes(xfs_inode_t **, int, uint);
void xfs_synchronize_atime(xfs_inode_t *);
void xfs_mark_inode_dirty_sync(xfs_inode_t *);
xfs_inode_item_pin(
xfs_inode_log_item_t *iip)
{
- ASSERT(ismrlocked(&(iip->ili_inode->i_lock), MR_UPDATE));
+ ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL));
xfs_ipin(iip->ili_inode);
}
ASSERT(iip != NULL);
ASSERT(iip->ili_inode->i_itemp != NULL);
- ASSERT(ismrlocked(&(iip->ili_inode->i_lock), MR_UPDATE));
+ ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL));
ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
XFS_ILI_IOLOCKED_EXCL)) ||
- ismrlocked(&(iip->ili_inode->i_iolock), MR_UPDATE));
+ xfs_isilocked(iip->ili_inode, XFS_IOLOCK_EXCL));
ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
XFS_ILI_IOLOCKED_SHARED)) ||
- ismrlocked(&(iip->ili_inode->i_iolock), MR_ACCESS));
+ xfs_isilocked(iip->ili_inode, XFS_IOLOCK_SHARED));
/*
* Clear the transaction pointer in the inode.
*/
ip = iip->ili_inode;
- ASSERT(ismrlocked(&(ip->i_lock), MR_ACCESS));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
/*
* The ili_pushbuf_flag keeps others from
ip = iip->ili_inode;
- ASSERT(ismrlocked(&(ip->i_lock), MR_ACCESS));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
ASSERT(issemalocked(&(ip->i_flock)));
/*
* Since we were able to lock the inode's flush lock and
break;
case BMAPI_WRITE:
xfs_iomap_enter_trace(XFS_IOMAP_WRITE_ENTER, ip, offset, count);
- lockmode = XFS_ILOCK_EXCL|XFS_EXTSIZE_WR;
+ lockmode = XFS_ILOCK_EXCL;
if (flags & BMAPI_IGNSTATE)
bmapi_flags |= XFS_BMAPI_IGSTATE|XFS_BMAPI_ENTIRE;
xfs_ilock(ip, lockmode);
break;
case BMAPI_ALLOCATE:
xfs_iomap_enter_trace(XFS_IOMAP_ALLOC_ENTER, ip, offset, count);
- lockmode = XFS_ILOCK_SHARED|XFS_EXTSIZE_RD;
+ lockmode = XFS_ILOCK_SHARED;
bmapi_flags = XFS_BMAPI_ENTIRE;
/* Attempt non-blocking lock */
goto error_out;
}
- if (unlikely(!imap.br_startblock &&
- !(XFS_IS_REALTIME_INODE(ip)))) {
+ if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip))) {
error = xfs_cmn_err_fsblock_zero(ip, &imap);
goto error_out;
}
int prealloc, fsynced = 0;
int error;
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
/*
* Make sure that the dquots are there. This doesn't hold
goto retry;
}
- if (unlikely(!imap[0].br_startblock &&
- !(XFS_IS_REALTIME_INODE(ip))))
+ if (!(imap[0].br_startblock || XFS_IS_REALTIME_INODE(ip)))
return xfs_cmn_err_fsblock_zero(ip, &imap[0]);
*ret_imap = imap[0];
* See if we were able to allocate an extent that
* covers at least part of the callers request
*/
- if (unlikely(!imap.br_startblock &&
- XFS_IS_REALTIME_INODE(ip)))
+ if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip)))
return xfs_cmn_err_fsblock_zero(ip, &imap);
+
if ((offset_fsb >= imap.br_startoff) &&
(offset_fsb < (imap.br_startoff +
imap.br_blockcount))) {
if (error)
return XFS_ERROR(error);
- if (unlikely(!imap.br_startblock &&
- !(XFS_IS_REALTIME_INODE(ip))))
+ if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip)))
return xfs_cmn_err_fsblock_zero(ip, &imap);
if ((numblks_fsb = imap.br_blockcount) == 0) {
ASSERT(ip != NULL);
ASSERT(ip->i_blkno != (xfs_daddr_t)0);
- if (ip->i_d.di_mode == 0) {
- *stat = BULKSTAT_RV_NOTHING;
- error = XFS_ERROR(ENOENT);
- goto out_iput;
- }
vp = XFS_ITOV(ip);
dic = &ip->i_d;
break;
}
- out_iput:
xfs_iput(ip, XFS_ILOCK_SHARED);
return error;
}
#ifdef HAVE_PERCPU_SB
STATIC void xfs_icsb_destroy_counters(xfs_mount_t *);
STATIC void xfs_icsb_balance_counter(xfs_mount_t *, xfs_sb_field_t,
- int, int);
-STATIC void xfs_icsb_sync_counters(xfs_mount_t *);
+ int);
+STATIC void xfs_icsb_balance_counter_locked(xfs_mount_t *, xfs_sb_field_t,
+ int);
STATIC int xfs_icsb_modify_counters(xfs_mount_t *, xfs_sb_field_t,
int64_t, int);
STATIC void xfs_icsb_disable_counter(xfs_mount_t *, xfs_sb_field_t);
#else
#define xfs_icsb_destroy_counters(mp) do { } while (0)
-#define xfs_icsb_balance_counter(mp, a, b, c) do { } while (0)
-#define xfs_icsb_sync_counters(mp) do { } while (0)
+#define xfs_icsb_balance_counter(mp, a, b) do { } while (0)
+#define xfs_icsb_balance_counter_locked(mp, a, b) do { } while (0)
#define xfs_icsb_modify_counters(mp, a, b, c) do { } while (0)
#endif
if (!xfs_fs_writable(mp))
return 0;
- xfs_icsb_sync_counters(mp);
+ xfs_icsb_sync_counters(mp, 0);
/*
* we don't need to do this if we are updating the superblock
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
xfs_icsb_lock(mp);
- xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0, 0);
- xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0, 0);
- xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0, 0);
+ xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0);
+ xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0);
+ xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0);
xfs_icsb_unlock(mp);
break;
case CPU_DEAD:
memset(cntp, 0, sizeof(xfs_icsb_cnts_t));
- xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT,
- XFS_ICSB_SB_LOCKED, 0);
- xfs_icsb_balance_counter(mp, XFS_SBS_IFREE,
- XFS_ICSB_SB_LOCKED, 0);
- xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS,
- XFS_ICSB_SB_LOCKED, 0);
+ xfs_icsb_balance_counter_locked(mp, XFS_SBS_ICOUNT, 0);
+ xfs_icsb_balance_counter_locked(mp, XFS_SBS_IFREE, 0);
+ xfs_icsb_balance_counter_locked(mp, XFS_SBS_FDBLOCKS, 0);
spin_unlock(&mp->m_sb_lock);
xfs_icsb_unlock(mp);
break;
* initial balance kicks us off correctly
*/
mp->m_icsb_counters = -1;
- xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0, 0);
- xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0, 0);
- xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0, 0);
+ xfs_icsb_balance_counter(mp, XFS_SBS_ICOUNT, 0);
+ xfs_icsb_balance_counter(mp, XFS_SBS_IFREE, 0);
+ xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS, 0);
xfs_icsb_unlock(mp);
}
if (!test_and_set_bit(field, &mp->m_icsb_counters)) {
/* drain back to superblock */
- xfs_icsb_count(mp, &cnt, XFS_ICSB_SB_LOCKED|XFS_ICSB_LAZY_COUNT);
+ xfs_icsb_count(mp, &cnt, XFS_ICSB_LAZY_COUNT);
switch(field) {
case XFS_SBS_ICOUNT:
mp->m_sb.sb_icount = cnt.icsb_icount;
}
void
-xfs_icsb_sync_counters_flags(
+xfs_icsb_sync_counters_locked(
xfs_mount_t *mp,
int flags)
{
xfs_icsb_cnts_t cnt;
- /* Pass 1: lock all counters */
- if ((flags & XFS_ICSB_SB_LOCKED) == 0)
- spin_lock(&mp->m_sb_lock);
-
xfs_icsb_count(mp, &cnt, flags);
- /* Step 3: update mp->m_sb fields */
if (!xfs_icsb_counter_disabled(mp, XFS_SBS_ICOUNT))
mp->m_sb.sb_icount = cnt.icsb_icount;
if (!xfs_icsb_counter_disabled(mp, XFS_SBS_IFREE))
mp->m_sb.sb_ifree = cnt.icsb_ifree;
if (!xfs_icsb_counter_disabled(mp, XFS_SBS_FDBLOCKS))
mp->m_sb.sb_fdblocks = cnt.icsb_fdblocks;
-
- if ((flags & XFS_ICSB_SB_LOCKED) == 0)
- spin_unlock(&mp->m_sb_lock);
}
/*
* Accurate update of per-cpu counters to incore superblock
*/
-STATIC void
+void
xfs_icsb_sync_counters(
- xfs_mount_t *mp)
+ xfs_mount_t *mp,
+ int flags)
{
- xfs_icsb_sync_counters_flags(mp, 0);
+ spin_lock(&mp->m_sb_lock);
+ xfs_icsb_sync_counters_locked(mp, flags);
+ spin_unlock(&mp->m_sb_lock);
}
/*
#define XFS_ICSB_FDBLK_CNTR_REENABLE(mp) \
(uint64_t)(512 + XFS_ALLOC_SET_ASIDE(mp))
STATIC void
-xfs_icsb_balance_counter(
+xfs_icsb_balance_counter_locked(
xfs_mount_t *mp,
xfs_sb_field_t field,
- int flags,
int min_per_cpu)
{
uint64_t count, resid;
int weight = num_online_cpus();
uint64_t min = (uint64_t)min_per_cpu;
- if (!(flags & XFS_ICSB_SB_LOCKED))
- spin_lock(&mp->m_sb_lock);
-
/* disable counter and sync counter */
xfs_icsb_disable_counter(mp, field);
count = mp->m_sb.sb_icount;
resid = do_div(count, weight);
if (count < max(min, XFS_ICSB_INO_CNTR_REENABLE))
- goto out;
+ return;
break;
case XFS_SBS_IFREE:
count = mp->m_sb.sb_ifree;
resid = do_div(count, weight);
if (count < max(min, XFS_ICSB_INO_CNTR_REENABLE))
- goto out;
+ return;
break;
case XFS_SBS_FDBLOCKS:
count = mp->m_sb.sb_fdblocks;
resid = do_div(count, weight);
if (count < max(min, XFS_ICSB_FDBLK_CNTR_REENABLE(mp)))
- goto out;
+ return;
break;
default:
BUG();
}
xfs_icsb_enable_counter(mp, field, count, resid);
-out:
- if (!(flags & XFS_ICSB_SB_LOCKED))
- spin_unlock(&mp->m_sb_lock);
+}
+
+STATIC void
+xfs_icsb_balance_counter(
+ xfs_mount_t *mp,
+ xfs_sb_field_t fields,
+ int min_per_cpu)
+{
+ spin_lock(&mp->m_sb_lock);
+ xfs_icsb_balance_counter_locked(mp, fields, min_per_cpu);
+ spin_unlock(&mp->m_sb_lock);
}
STATIC int
* we are done.
*/
if (ret != ENOSPC)
- xfs_icsb_balance_counter(mp, field, 0, 0);
+ xfs_icsb_balance_counter(mp, field, 0);
xfs_icsb_unlock(mp);
return ret;
* will either succeed through the fast path or slow path without
* another balance operation being required.
*/
- xfs_icsb_balance_counter(mp, field, 0, delta);
+ xfs_icsb_balance_counter(mp, field, delta);
xfs_icsb_unlock(mp);
goto again;
}
#define XFS_ICSB_FLAG_LOCK (1 << 0) /* counter lock bit */
-#define XFS_ICSB_SB_LOCKED (1 << 0) /* sb already locked */
#define XFS_ICSB_LAZY_COUNT (1 << 1) /* accuracy not needed */
extern int xfs_icsb_init_counters(struct xfs_mount *);
extern void xfs_icsb_reinit_counters(struct xfs_mount *);
-extern void xfs_icsb_sync_counters_flags(struct xfs_mount *, int);
+extern void xfs_icsb_sync_counters(struct xfs_mount *, int);
+extern void xfs_icsb_sync_counters_locked(struct xfs_mount *, int);
#else
#define xfs_icsb_init_counters(mp) (0)
#define xfs_icsb_reinit_counters(mp) do { } while (0)
-#define xfs_icsb_sync_counters_flags(mp, flags) do { } while (0)
+#define xfs_icsb_sync_counters(mp, flags) do { } while (0)
+#define xfs_icsb_sync_counters_locked(mp, flags) do { } while (0)
#endif
typedef struct xfs_ail {
xfs_iunlock(i_tab[0], lock_mode);
for (i = 1; i < 4; i++) {
- if (i_tab[i] == NULL) {
+ if (i_tab[i] == NULL)
break;
- }
+
/*
* Watch out for duplicate entries in the table.
*/
- if (i_tab[i] != i_tab[i-1]) {
+ if (i_tab[i] != i_tab[i-1])
xfs_iunlock(i_tab[i], lock_mode);
- }
}
}
-#ifdef DEBUG
-int xfs_rename_skip, xfs_rename_nskip;
-#endif
-
/*
- * The following routine will acquire the locks required for a rename
- * operation. The code understands the semantics of renames and will
- * validate that name1 exists under dp1 & that name2 may or may not
- * exist under dp2.
- *
- * We are renaming dp1/name1 to dp2/name2.
- *
- * Return ENOENT if dp1 does not exist, other lookup errors, or 0 for success.
+ * Enter all inodes for a rename transaction into a sorted array.
*/
-STATIC int
-xfs_lock_for_rename(
+STATIC void
+xfs_sort_for_rename(
xfs_inode_t *dp1, /* in: old (source) directory inode */
xfs_inode_t *dp2, /* in: new (target) directory inode */
xfs_inode_t *ip1, /* in: inode of old entry */
- struct xfs_name *name2, /* in: new entry name */
- xfs_inode_t **ipp2, /* out: inode of new entry, if it
+ xfs_inode_t *ip2, /* in: inode of new entry, if it
already exists, NULL otherwise. */
xfs_inode_t **i_tab,/* out: array of inode returned, sorted */
int *num_inodes) /* out: number of inodes in array */
{
- xfs_inode_t *ip2 = NULL;
xfs_inode_t *temp;
- xfs_ino_t inum1, inum2;
- int error;
int i, j;
- uint lock_mode;
- int diff_dirs = (dp1 != dp2);
-
- /*
- * First, find out the current inums of the entries so that we
- * can determine the initial locking order. We'll have to
- * sanity check stuff after all the locks have been acquired
- * to see if we still have the right inodes, directories, etc.
- */
- lock_mode = xfs_ilock_map_shared(dp1);
- IHOLD(ip1);
- xfs_itrace_ref(ip1);
-
- inum1 = ip1->i_ino;
-
- /*
- * Unlock dp1 and lock dp2 if they are different.
- */
- if (diff_dirs) {
- xfs_iunlock_map_shared(dp1, lock_mode);
- lock_mode = xfs_ilock_map_shared(dp2);
- }
-
- error = xfs_dir_lookup_int(dp2, lock_mode, name2, &inum2, &ip2);
- if (error == ENOENT) { /* target does not need to exist. */
- inum2 = 0;
- } else if (error) {
- /*
- * If dp2 and dp1 are the same, the next line unlocks dp1.
- * Got it?
- */
- xfs_iunlock_map_shared(dp2, lock_mode);
- IRELE (ip1);
- return error;
- } else {
- xfs_itrace_ref(ip2);
- }
/*
* i_tab contains a list of pointers to inodes. We initialize
i_tab[0] = dp1;
i_tab[1] = dp2;
i_tab[2] = ip1;
- if (inum2 == 0) {
- *num_inodes = 3;
- i_tab[3] = NULL;
- } else {
+ if (ip2) {
*num_inodes = 4;
i_tab[3] = ip2;
+ } else {
+ *num_inodes = 3;
+ i_tab[3] = NULL;
}
- *ipp2 = i_tab[3];
/*
* Sort the elements via bubble sort. (Remember, there are at
* most 4 elements to sort, so this is adequate.)
*/
- for (i=0; i < *num_inodes; i++) {
- for (j=1; j < *num_inodes; j++) {
+ for (i = 0; i < *num_inodes; i++) {
+ for (j = 1; j < *num_inodes; j++) {
if (i_tab[j]->i_ino < i_tab[j-1]->i_ino) {
temp = i_tab[j];
i_tab[j] = i_tab[j-1];
}
}
}
-
- /*
- * We have dp2 locked. If it isn't first, unlock it.
- * If it is first, tell xfs_lock_inodes so it can skip it
- * when locking. if dp1 == dp2, xfs_lock_inodes will skip both
- * since they are equal. xfs_lock_inodes needs all these inodes
- * so that it can unlock and retry if there might be a dead-lock
- * potential with the log.
- */
-
- if (i_tab[0] == dp2 && lock_mode == XFS_ILOCK_SHARED) {
-#ifdef DEBUG
- xfs_rename_skip++;
-#endif
- xfs_lock_inodes(i_tab, *num_inodes, 1, XFS_ILOCK_SHARED);
- } else {
-#ifdef DEBUG
- xfs_rename_nskip++;
-#endif
- xfs_iunlock_map_shared(dp2, lock_mode);
- xfs_lock_inodes(i_tab, *num_inodes, 0, XFS_ILOCK_SHARED);
- }
-
- return 0;
}
/*
struct xfs_name *src_name,
xfs_inode_t *src_ip,
xfs_inode_t *target_dp,
- struct xfs_name *target_name)
+ struct xfs_name *target_name,
+ xfs_inode_t *target_ip)
{
- xfs_trans_t *tp;
- xfs_inode_t *target_ip;
+ xfs_trans_t *tp = NULL;
xfs_mount_t *mp = src_dp->i_mount;
int new_parent; /* moving to a new dir */
int src_is_directory; /* src_name is a directory */
int cancel_flags;
int committed;
xfs_inode_t *inodes[4];
- int target_ip_dropped = 0; /* dropped target_ip link? */
int spaceres;
- int target_link_zero = 0;
int num_inodes;
xfs_itrace_entry(src_dp);
target_dp, DM_RIGHT_NULL,
src_name->name, target_name->name,
0, 0, 0);
- if (error) {
+ if (error)
return error;
- }
}
/* Return through std_return after this point. */
- /*
- * Lock all the participating inodes. Depending upon whether
- * the target_name exists in the target directory, and
- * whether the target directory is the same as the source
- * directory, we can lock from 2 to 4 inodes.
- * xfs_lock_for_rename() will return ENOENT if src_name
- * does not exist in the source directory.
- */
- tp = NULL;
- error = xfs_lock_for_rename(src_dp, target_dp, src_ip, target_name,
- &target_ip, inodes, &num_inodes);
- if (error) {
- /*
- * We have nothing locked, no inode references, and
- * no transaction, so just get out.
- */
- goto std_return;
- }
-
- ASSERT(src_ip != NULL);
+ new_parent = (src_dp != target_dp);
+ src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR);
- if ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+ if (src_is_directory) {
/*
* Check for link count overflow on target_dp
*/
- if (target_ip == NULL && (src_dp != target_dp) &&
+ if (target_ip == NULL && new_parent &&
target_dp->i_d.di_nlink >= XFS_MAXLINK) {
error = XFS_ERROR(EMLINK);
- xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
- goto rele_return;
+ goto std_return;
}
}
- /*
- * If we are using project inheritance, we only allow renames
- * into our tree when the project IDs are the same; else the
- * tree quota mechanism would be circumvented.
- */
- if (unlikely((target_dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
- (target_dp->i_d.di_projid != src_ip->i_d.di_projid))) {
- error = XFS_ERROR(EXDEV);
- xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
- goto rele_return;
- }
-
- new_parent = (src_dp != target_dp);
- src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR);
-
- /*
- * Drop the locks on our inodes so that we can start the transaction.
- */
- xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
+ xfs_sort_for_rename(src_dp, target_dp, src_ip, target_ip,
+ inodes, &num_inodes);
XFS_BMAP_INIT(&free_list, &first_block);
tp = xfs_trans_alloc(mp, XFS_TRANS_RENAME);
}
if (error) {
xfs_trans_cancel(tp, 0);
- goto rele_return;
+ goto std_return;
}
/*
*/
if ((error = XFS_QM_DQVOPRENAME(mp, inodes))) {
xfs_trans_cancel(tp, cancel_flags);
- goto rele_return;
+ goto std_return;
}
/*
- * Reacquire the inode locks we dropped above.
+ * Lock all the participating inodes. Depending upon whether
+ * the target_name exists in the target directory, and
+ * whether the target directory is the same as the source
+ * directory, we can lock from 2 to 4 inodes.
+ */
+ xfs_lock_inodes(inodes, num_inodes, XFS_ILOCK_EXCL);
+
+ /*
+ * If we are using project inheritance, we only allow renames
+ * into our tree when the project IDs are the same; else the
+ * tree quota mechanism would be circumvented.
*/
- xfs_lock_inodes(inodes, num_inodes, 0, XFS_ILOCK_EXCL);
+ if (unlikely((target_dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
+ (target_dp->i_d.di_projid != src_ip->i_d.di_projid))) {
+ error = XFS_ERROR(EXDEV);
+ xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
+ xfs_trans_cancel(tp, cancel_flags);
+ goto std_return;
+ }
/*
* Join all the inodes to the transaction. From this point on,
*/
IHOLD(src_dp);
xfs_trans_ijoin(tp, src_dp, XFS_ILOCK_EXCL);
+
if (new_parent) {
IHOLD(target_dp);
xfs_trans_ijoin(tp, target_dp, XFS_ILOCK_EXCL);
}
- if ((src_ip != src_dp) && (src_ip != target_dp)) {
- xfs_trans_ijoin(tp, src_ip, XFS_ILOCK_EXCL);
- }
- if ((target_ip != NULL) &&
- (target_ip != src_ip) &&
- (target_ip != src_dp) &&
- (target_ip != target_dp)) {
+
+ IHOLD(src_ip);
+ xfs_trans_ijoin(tp, src_ip, XFS_ILOCK_EXCL);
+
+ if (target_ip) {
+ IHOLD(target_ip);
xfs_trans_ijoin(tp, target_ip, XFS_ILOCK_EXCL);
}
error = xfs_droplink(tp, target_ip);
if (error)
goto abort_return;
- target_ip_dropped = 1;
if (src_is_directory) {
/*
if (error)
goto abort_return;
}
-
- /* Do this test while we still hold the locks */
- target_link_zero = (target_ip)->i_d.di_nlink==0;
-
} /* target_ip != NULL */
/*
xfs_trans_log_inode(tp, target_dp, XFS_ILOG_CORE);
}
- /*
- * If there was a target inode, take an extra reference on
- * it here so that it doesn't go to xfs_inactive() from
- * within the commit.
- */
- if (target_ip != NULL) {
- IHOLD(target_ip);
- }
-
/*
* If this is a synchronous mount, make sure that the
* rename transaction goes to disk before returning to
xfs_trans_set_sync(tp);
}
- /*
- * Take refs. for vop_link_removed calls below. No need to worry
- * about directory refs. because the caller holds them.
- *
- * Do holds before the xfs_bmap_finish since it might rele them down
- * to zero.
- */
-
- if (target_ip_dropped)
- IHOLD(target_ip);
- IHOLD(src_ip);
-
error = xfs_bmap_finish(&tp, &free_list, &committed);
if (error) {
xfs_bmap_cancel(&free_list);
xfs_trans_cancel(tp, (XFS_TRANS_RELEASE_LOG_RES |
XFS_TRANS_ABORT));
- if (target_ip != NULL) {
- IRELE(target_ip);
- }
- if (target_ip_dropped) {
- IRELE(target_ip);
- }
- IRELE(src_ip);
goto std_return;
}
* the vnode references.
*/
error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
- if (target_ip != NULL)
- IRELE(target_ip);
- /*
- * Let interposed file systems know about removed links.
- */
- if (target_ip_dropped)
- IRELE(target_ip);
-
- IRELE(src_ip);
/* Fall through to std_return with error = 0 or errno from
* xfs_trans_commit */
xfs_bmap_cancel(&free_list);
xfs_trans_cancel(tp, cancel_flags);
goto std_return;
-
- rele_return:
- IRELE(src_ip);
- if (target_ip != NULL) {
- IRELE(target_ip);
- }
- goto std_return;
}
*/
ASSERT(ip->i_itemp != NULL);
ASSERT(lock_flags & XFS_ILOCK_EXCL);
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT((!(lock_flags & XFS_IOLOCK_EXCL)) ||
- ismrlocked(&ip->i_iolock, MR_UPDATE));
+ xfs_isilocked(ip, XFS_IOLOCK_EXCL));
ASSERT((!(lock_flags & XFS_IOLOCK_EXCL)) ||
(ip->i_itemp->ili_flags & XFS_ILI_IOLOCKED_EXCL));
ASSERT((!(lock_flags & XFS_IOLOCK_SHARED)) ||
- ismrlocked(&ip->i_iolock, (MR_UPDATE | MR_ACCESS)));
+ xfs_isilocked(ip, XFS_IOLOCK_EXCL|XFS_IOLOCK_SHARED));
ASSERT((!(lock_flags & XFS_IOLOCK_SHARED)) ||
(ip->i_itemp->ili_flags & XFS_ILI_IOLOCKED_ANY));
xfs_inode_log_item_t *iip;
ASSERT(ip->i_transp == NULL);
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(lock_flags & XFS_ILOCK_EXCL);
if (ip->i_itemp == NULL)
xfs_inode_item_init(ip, ip->i_mount);
{
ASSERT(ip->i_transp == tp);
ASSERT(ip->i_itemp != NULL);
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ip->i_itemp->ili_flags |= XFS_ILI_HOLD;
}
ASSERT(ip->i_transp == tp);
ASSERT(ip->i_itemp != NULL);
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)(ip->i_itemp));
ASSERT(lidp != NULL);
#include "xfs_utils.h"
-int
-xfs_dir_lookup_int(
- xfs_inode_t *dp,
- uint lock_mode,
- struct xfs_name *name,
- xfs_ino_t *inum,
- xfs_inode_t **ipp)
-{
- int error;
-
- xfs_itrace_entry(dp);
-
- error = xfs_dir_lookup(NULL, dp, name, inum);
- if (!error) {
- /*
- * Unlock the directory. We do this because we can't
- * hold the directory lock while doing the vn_get()
- * in xfs_iget(). Doing so could cause us to hold
- * a lock while waiting for the inode to finish
- * being inactive while it's waiting for a log
- * reservation in the inactive routine.
- */
- xfs_iunlock(dp, lock_mode);
- error = xfs_iget(dp->i_mount, NULL, *inum, 0, 0, ipp, 0);
- xfs_ilock(dp, lock_mode);
-
- if (error) {
- *ipp = NULL;
- } else if ((*ipp)->i_d.di_mode == 0) {
- /*
- * The inode has been freed. Something is
- * wrong so just get out of here.
- */
- xfs_iunlock(dp, lock_mode);
- xfs_iput_new(*ipp, 0);
- *ipp = NULL;
- xfs_ilock(dp, lock_mode);
- error = XFS_ERROR(ENOENT);
- }
- }
- return error;
-}
-
/*
* Allocates a new inode from disk and return a pointer to the
* incore copy. This routine will internally commit the current
{
xfs_mount_t *mp;
- ASSERT(ismrlocked (&ip->i_lock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(ip->i_d.di_version == XFS_DINODE_VERSION_1);
ip->i_d.di_version = XFS_DINODE_VERSION_2;
#define IRELE(ip) VN_RELE(XFS_ITOV(ip))
#define IHOLD(ip) VN_HOLD(XFS_ITOV(ip))
-extern int xfs_dir_lookup_int(xfs_inode_t *, uint, struct xfs_name *,
- xfs_ino_t *, xfs_inode_t **);
extern int xfs_truncate_file(xfs_mount_t *, xfs_inode_t *);
extern int xfs_dir_ialloc(xfs_trans_t **, xfs_inode_t *, mode_t, xfs_nlink_t,
xfs_dev_t, cred_t *, prid_t, int,
kmem_zone_destroy(xfs_efi_zone);
kmem_zone_destroy(xfs_ifork_zone);
kmem_zone_destroy(xfs_ili_zone);
+ kmem_zone_destroy(xfs_log_ticket_zone);
}
/*
return 0;
}
-/*
- * xfs_getattr
- */
-int
-xfs_getattr(
- xfs_inode_t *ip,
- bhv_vattr_t *vap,
- int flags)
-{
- bhv_vnode_t *vp = XFS_ITOV(ip);
- xfs_mount_t *mp = ip->i_mount;
-
- xfs_itrace_entry(ip);
-
- if (XFS_FORCED_SHUTDOWN(mp))
- return XFS_ERROR(EIO);
-
- if (!(flags & ATTR_LAZY))
- xfs_ilock(ip, XFS_ILOCK_SHARED);
-
- vap->va_size = XFS_ISIZE(ip);
- if (vap->va_mask == XFS_AT_SIZE)
- goto all_done;
-
- vap->va_nblocks =
- XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
- vap->va_nodeid = ip->i_ino;
-#if XFS_BIG_INUMS
- vap->va_nodeid += mp->m_inoadd;
-#endif
- vap->va_nlink = ip->i_d.di_nlink;
-
- /*
- * Quick exit for non-stat callers
- */
- if ((vap->va_mask &
- ~(XFS_AT_SIZE|XFS_AT_FSID|XFS_AT_NODEID|
- XFS_AT_NLINK|XFS_AT_BLKSIZE)) == 0)
- goto all_done;
-
- /*
- * Copy from in-core inode.
- */
- vap->va_mode = ip->i_d.di_mode;
- vap->va_uid = ip->i_d.di_uid;
- vap->va_gid = ip->i_d.di_gid;
- vap->va_projid = ip->i_d.di_projid;
-
- /*
- * Check vnode type block/char vs. everything else.
- */
- switch (ip->i_d.di_mode & S_IFMT) {
- case S_IFBLK:
- case S_IFCHR:
- vap->va_rdev = ip->i_df.if_u2.if_rdev;
- vap->va_blocksize = BLKDEV_IOSIZE;
- break;
- default:
- vap->va_rdev = 0;
-
- if (!(XFS_IS_REALTIME_INODE(ip))) {
- vap->va_blocksize = xfs_preferred_iosize(mp);
- } else {
-
- /*
- * If the file blocks are being allocated from a
- * realtime partition, then return the inode's
- * realtime extent size or the realtime volume's
- * extent size.
- */
- vap->va_blocksize =
- xfs_get_extsz_hint(ip) << mp->m_sb.sb_blocklog;
- }
- break;
- }
-
- vn_atime_to_timespec(vp, &vap->va_atime);
- vap->va_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
- vap->va_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
- vap->va_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
- vap->va_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
-
- /*
- * Exit for stat callers. See if any of the rest of the fields
- * to be filled in are needed.
- */
- if ((vap->va_mask &
- (XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|
- XFS_AT_GENCOUNT|XFS_AT_VCODE)) == 0)
- goto all_done;
-
- /*
- * Convert di_flags to xflags.
- */
- vap->va_xflags = xfs_ip2xflags(ip);
-
- /*
- * Exit for inode revalidate. See if any of the rest of
- * the fields to be filled in are needed.
- */
- if ((vap->va_mask &
- (XFS_AT_EXTSIZE|XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|
- XFS_AT_GENCOUNT|XFS_AT_VCODE)) == 0)
- goto all_done;
-
- vap->va_extsize = ip->i_d.di_extsize << mp->m_sb.sb_blocklog;
- vap->va_nextents =
- (ip->i_df.if_flags & XFS_IFEXTENTS) ?
- ip->i_df.if_bytes / sizeof(xfs_bmbt_rec_t) :
- ip->i_d.di_nextents;
- if (ip->i_afp)
- vap->va_anextents =
- (ip->i_afp->if_flags & XFS_IFEXTENTS) ?
- ip->i_afp->if_bytes / sizeof(xfs_bmbt_rec_t) :
- ip->i_d.di_anextents;
- else
- vap->va_anextents = 0;
- vap->va_gen = ip->i_d.di_gen;
-
- all_done:
- if (!(flags & ATTR_LAZY))
- xfs_iunlock(ip, XFS_ILOCK_SHARED);
- return 0;
-}
-
-
/*
* xfs_setattr
*/
int flags,
cred_t *credp)
{
- bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_mount_t *mp = ip->i_mount;
xfs_trans_t *tp;
int mask;
gid_t gid=0, igid=0;
int timeflags = 0;
xfs_prid_t projid=0, iprojid=0;
- int mandlock_before, mandlock_after;
struct xfs_dquot *udqp, *gdqp, *olddquot1, *olddquot2;
int file_owner;
int need_iolock = 1;
m |= S_ISGID;
#if 0
/* Linux allows this, Irix doesn't. */
- if ((vap->va_mode & S_ISVTX) && !VN_ISDIR(vp))
+ if ((vap->va_mode & S_ISVTX) && !S_ISDIR(ip->i_d.di_mode))
m |= S_ISVTX;
#endif
if (m && !capable(CAP_FSETID))
goto error_return;
}
- if (VN_ISDIR(vp)) {
+ if (S_ISDIR(ip->i_d.di_mode)) {
code = XFS_ERROR(EISDIR);
goto error_return;
- } else if (!VN_ISREG(vp)) {
+ } else if (!S_ISREG(ip->i_d.di_mode)) {
code = XFS_ERROR(EINVAL);
goto error_return;
}
xfs_trans_ihold(tp, ip);
}
- /* determine whether mandatory locking mode changes */
- mandlock_before = MANDLOCK(vp, ip->i_d.di_mode);
-
/*
* Truncate file. Must have write permission and not be a directory.
*/
code = xfs_trans_commit(tp, commit_flags);
}
- /*
- * If the (regular) file's mandatory locking mode changed, then
- * notify the vnode. We do this under the inode lock to prevent
- * racing calls to vop_vnode_change.
- */
- mandlock_after = MANDLOCK(vp, ip->i_d.di_mode);
-
xfs_iunlock(ip, lock_flags);
/*
int error;
xfs_mount_t *mp;
- ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
tp = *tpp;
mp = ip->i_mount;
ASSERT(ip->i_d.di_forkoff != 0);
xfs_mount_t *mp = ip->i_mount;
int error;
- if (!VN_ISREG(vp) || (ip->i_d.di_mode == 0))
+ if (!S_ISREG(ip->i_d.di_mode) || (ip->i_d.di_mode == 0))
return 0;
/* If this is a read-only mount, don't do this (would generate I/O) */
struct xfs_name *name,
xfs_inode_t **ipp)
{
- xfs_inode_t *ip;
- xfs_ino_t e_inum;
+ xfs_ino_t inum;
int error;
uint lock_mode;
return XFS_ERROR(EIO);
lock_mode = xfs_ilock_map_shared(dp);
- error = xfs_dir_lookup_int(dp, lock_mode, name, &e_inum, &ip);
- if (!error) {
- *ipp = ip;
- xfs_itrace_ref(ip);
- }
+ error = xfs_dir_lookup(NULL, dp, name, &inum);
xfs_iunlock_map_shared(dp, lock_mode);
+
+ if (error)
+ goto out;
+
+ error = xfs_iget(dp->i_mount, NULL, inum, 0, 0, ipp, 0);
+ if (error)
+ goto out;
+
+ xfs_itrace_ref(*ipp);
+ return 0;
+
+ out:
+ *ipp = NULL;
return error;
}
* It is locked (and joined to the transaction).
*/
- ASSERT(ismrlocked (&ip->i_lock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
/*
* Now we join the directory inode to the transaction. We do not do it
ips[0] = ip;
ips[1] = dp;
- xfs_lock_inodes(ips, 2, 0, XFS_ILOCK_EXCL);
+ xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
}
/* else e_inum == dp->i_ino */
/* This can happen if we're asked to lock /x/..
xfs_lock_inodes(
xfs_inode_t **ips,
int inodes,
- int first_locked,
uint lock_mode)
{
int attempts = 0, i, j, try_lock;
ASSERT(ips && (inodes >= 2)); /* we need at least two */
- if (first_locked) {
- try_lock = 1;
- i = 1;
- } else {
- try_lock = 0;
- i = 0;
- }
+ try_lock = 0;
+ i = 0;
again:
for (; i < inodes; i++) {
return error;
}
- /*
- * We need to get a reference to ip before we get our log
- * reservation. The reason for this is that we cannot call
- * xfs_iget for an inode for which we do not have a reference
- * once we've acquired a log reservation. This is because the
- * inode we are trying to get might be in xfs_inactive going
- * for a log reservation. Since we'll have to wait for the
- * inactive code to complete before returning from xfs_iget,
- * we need to make sure that we don't have log space reserved
- * when we call xfs_iget. Instead we get an unlocked reference
- * to the inode before getting our log reservation.
- */
- IHOLD(ip);
-
xfs_itrace_entry(ip);
xfs_itrace_ref(ip);
error = XFS_QM_DQATTACH(mp, dp, 0);
- if (!error && dp != ip)
+ if (!error)
error = XFS_QM_DQATTACH(mp, ip, 0);
if (error) {
REMOVE_DEBUG_TRACE(__LINE__);
- IRELE(ip);
goto std_return;
}
ASSERT(error != ENOSPC);
REMOVE_DEBUG_TRACE(__LINE__);
xfs_trans_cancel(tp, 0);
- IRELE(ip);
return error;
}
if (error) {
REMOVE_DEBUG_TRACE(__LINE__);
xfs_trans_cancel(tp, cancel_flags);
- IRELE(ip);
goto std_return;
}
* At this point, we've gotten both the directory and the entry
* inodes locked.
*/
+ IHOLD(ip);
xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
- if (dp != ip) {
- /*
- * Increment vnode ref count only in this case since
- * there's an extra vnode reference in the case where
- * dp == ip.
- */
- IHOLD(dp);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- }
+
+ IHOLD(dp);
+ xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
/*
* Entry must exist since we did a lookup in xfs_lock_dir_and_entry.
*/
XFS_BMAP_INIT(&free_list, &first_block);
error = xfs_dir_removename(tp, dp, name, ip->i_ino,
- &first_block, &free_list, 0);
+ &first_block, &free_list, resblks);
if (error) {
ASSERT(error != ENOENT);
REMOVE_DEBUG_TRACE(__LINE__);
*/
link_zero = (ip)->i_d.di_nlink==0;
- /*
- * Take an extra ref on the inode so that it doesn't
- * go to xfs_inactive() from within the commit.
- */
- IHOLD(ip);
-
/*
* If this is a synchronous mount, make sure that the
* remove transaction goes to disk before returning to
}
error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
- if (error) {
- IRELE(ip);
+ if (error)
goto std_return;
- }
/*
* If we are using filestreams, kill the stream association.
xfs_filestream_deassociate(ip);
xfs_itrace_exit(ip);
- IRELE(ip);
/* Fall through to std_return with error = 0 */
std_return:
cancel_flags |= XFS_TRANS_ABORT;
xfs_trans_cancel(tp, cancel_flags);
- IRELE(ip);
-
goto std_return;
}
ips[1] = sip;
}
- xfs_lock_inodes(ips, 2, 0, XFS_ILOCK_EXCL);
+ xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
/*
* Increment vnode ref counts since xfs_trans_commit &
struct xfs_name *name,
xfs_inode_t *cdp)
{
- bhv_vnode_t *dir_vp = XFS_ITOV(dp);
xfs_mount_t *mp = dp->i_mount;
xfs_trans_t *tp;
int error;
return XFS_ERROR(error);
}
- /*
- * We need to get a reference to cdp before we get our log
- * reservation. The reason for this is that we cannot call
- * xfs_iget for an inode for which we do not have a reference
- * once we've acquired a log reservation. This is because the
- * inode we are trying to get might be in xfs_inactive going
- * for a log reservation. Since we'll have to wait for the
- * inactive code to complete before returning from xfs_iget,
- * we need to make sure that we don't have log space reserved
- * when we call xfs_iget. Instead we get an unlocked reference
- * to the inode before getting our log reservation.
- */
- IHOLD(cdp);
-
/*
* Get the dquots for the inodes.
*/
error = XFS_QM_DQATTACH(mp, dp, 0);
- if (!error && dp != cdp)
+ if (!error)
error = XFS_QM_DQATTACH(mp, cdp, 0);
if (error) {
- IRELE(cdp);
REMOVE_DEBUG_TRACE(__LINE__);
goto std_return;
}
if (error) {
ASSERT(error != ENOSPC);
cancel_flags = 0;
- IRELE(cdp);
goto error_return;
}
XFS_BMAP_INIT(&free_list, &first_block);
error = xfs_lock_dir_and_entry(dp, cdp);
if (error) {
xfs_trans_cancel(tp, cancel_flags);
- IRELE(cdp);
goto std_return;
}
+ IHOLD(dp);
xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
- if (dp != cdp) {
- /*
- * Only increment the parent directory vnode count if
- * we didn't bump it in looking up cdp. The only time
- * we don't bump it is when we're looking up ".".
- */
- VN_HOLD(dir_vp);
- }
- xfs_itrace_ref(cdp);
+ IHOLD(cdp);
xfs_trans_ijoin(tp, cdp, XFS_ILOCK_EXCL);
ASSERT(cdp->i_d.di_nlink >= 2);
/* Determine these before committing transaction */
last_cdp_link = (cdp)->i_d.di_nlink==0;
- /*
- * Take an extra ref on the child vnode so that it
- * does not go to xfs_inactive() from within the commit.
- */
- IHOLD(cdp);
-
/*
* If this is a synchronous mount, make sure that the
* rmdir transaction goes to disk before returning to
xfs_bmap_cancel(&free_list);
xfs_trans_cancel(tp, (XFS_TRANS_RELEASE_LOG_RES |
XFS_TRANS_ABORT));
- IRELE(cdp);
goto std_return;
}
error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
if (error) {
- IRELE(cdp);
goto std_return;
}
- IRELE(cdp);
-
/* Fall through to std_return with error = 0 or the errno
* from xfs_trans_commit. */
std_return:
int xfs_open(struct xfs_inode *ip);
-int xfs_getattr(struct xfs_inode *ip, struct bhv_vattr *vap, int flags);
int xfs_setattr(struct xfs_inode *ip, struct bhv_vattr *vap, int flags,
struct cred *credp);
int xfs_readlink(struct xfs_inode *ip, char *link);
struct cred *credp, int attr_flags);
int xfs_rename(struct xfs_inode *src_dp, struct xfs_name *src_name,
struct xfs_inode *src_ip, struct xfs_inode *target_dp,
- struct xfs_name *target_name);
+ struct xfs_name *target_name, struct xfs_inode *target_ip);
int xfs_attr_get(struct xfs_inode *ip, const char *name, char *value,
- int *valuelenp, int flags, cred_t *cred);
+ int *valuelenp, int flags);
int xfs_attr_set(struct xfs_inode *dp, const char *name, char *value,
int valuelen, int flags);
int xfs_attr_remove(struct xfs_inode *dp, const char *name, int flags);
ssize_t xfs_read(struct xfs_inode *ip, struct kiocb *iocb,
const struct iovec *iovp, unsigned int segs,
loff_t *offset, int ioflags);
-ssize_t xfs_sendfile(struct xfs_inode *ip, struct file *filp,
- loff_t *offset, int ioflags, size_t count,
- read_actor_t actor, void *target);
ssize_t xfs_splice_read(struct xfs_inode *ip, struct file *infilp,
loff_t *ppos, struct pipe_inode_info *pipe, size_t count,
int flags, int ioflags);
projects / karo-tx-linux.git / commitdiff