-#include "ceph_debug.h"
+#include <linux/ceph/ceph_debug.h>
#include <linux/module.h>
#include <linux/fs.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/uaccess.h>
#include <linux/pagevec.h>
#include "super.h"
-#include "decode.h"
+#include "mds_client.h"
+#include <linux/ceph/decode.h>
/*
* Ceph inode operations
ci->i_release_count = 0;
ci->i_symlink = NULL;
+ memset(&ci->i_dir_layout, 0, sizeof(ci->i_dir_layout));
+
ci->i_fragtree = RB_ROOT;
mutex_init(&ci->i_fragtree_mutex);
return &ci->vfs_inode;
}
+static void ceph_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ struct ceph_inode_info *ci = ceph_inode(inode);
+
+ INIT_LIST_HEAD(&inode->i_dentry);
+ kmem_cache_free(ceph_inode_cachep, ci);
+}
+
void ceph_destroy_inode(struct inode *inode)
{
struct ceph_inode_info *ci = ceph_inode(inode);
*/
if (ci->i_snap_realm) {
struct ceph_mds_client *mdsc =
- &ceph_sb_to_client(ci->vfs_inode.i_sb)->mdsc;
+ ceph_sb_to_client(ci->vfs_inode.i_sb)->mdsc;
struct ceph_snap_realm *realm = ci->i_snap_realm;
dout(" dropping residual ref to snap realm %p\n", realm);
if (ci->i_xattrs.prealloc_blob)
ceph_buffer_put(ci->i_xattrs.prealloc_blob);
- kmem_cache_free(ceph_inode_cachep, ci);
+ call_rcu(&inode->i_rcu, ceph_i_callback);
}
if (issued & (CEPH_CAP_FILE_EXCL|
CEPH_CAP_FILE_WR|
- CEPH_CAP_FILE_BUFFER)) {
+ CEPH_CAP_FILE_BUFFER|
+ CEPH_CAP_AUTH_EXCL|
+ CEPH_CAP_XATTR_EXCL)) {
if (timespec_compare(ctime, &inode->i_ctime) > 0) {
dout("ctime %ld.%09ld -> %ld.%09ld inc w/ cap\n",
inode->i_ctime.tv_sec, inode->i_ctime.tv_nsec,
warn = 1;
}
} else {
- /* we have no write caps; whatever the MDS says is true */
+ /* we have no write|excl caps; whatever the MDS says is true */
if (ceph_seq_cmp(time_warp_seq, ci->i_time_warp_seq) >= 0) {
inode->i_ctime = *ctime;
inode->i_mtime = *mtime;
/*
* provided version will be odd if inode value is projected,
- * even if stable. skip the update if we have a newer info
- * (e.g., due to inode info racing form multiple MDSs), or if
- * we are getting projected (unstable) inode info.
+ * even if stable. skip the update if we have newer stable
+ * info (ours>=theirs, e.g. due to racing mds replies), unless
+ * we are getting projected (unstable) info (in which case the
+ * version is odd, and we want ours>theirs).
+ * us them
+ * 2 2 skip
+ * 3 2 skip
+ * 3 3 update
*/
if (le64_to_cpu(info->version) > 0 &&
- (ci->i_version & ~1) > le64_to_cpu(info->version))
+ (ci->i_version & ~1) >= le64_to_cpu(info->version))
goto no_change;
issued = __ceph_caps_issued(ci, &implemented);
le32_to_cpu(info->time_warp_seq),
&ctime, &mtime, &atime);
- ci->i_max_size = le64_to_cpu(info->max_size);
+ /* only update max_size on auth cap */
+ if ((info->cap.flags & CEPH_CAP_FLAG_AUTH) &&
+ ci->i_max_size != le64_to_cpu(info->max_size)) {
+ dout("max_size %lld -> %llu\n", ci->i_max_size,
+ le64_to_cpu(info->max_size));
+ ci->i_max_size = le64_to_cpu(info->max_size);
+ }
+
ci->i_layout = info->layout;
inode->i_blkbits = fls(le32_to_cpu(info->layout.fl_stripe_unit)) - 1;
inode->i_op = &ceph_dir_iops;
inode->i_fop = &ceph_dir_fops;
+ ci->i_dir_layout = iinfo->dir_layout;
+
ci->i_files = le64_to_cpu(info->files);
ci->i_subdirs = le64_to_cpu(info->subdirs);
ci->i_rbytes = le64_to_cpu(info->rbytes);
(issued & CEPH_CAP_FILE_EXCL) == 0 &&
(ci->i_ceph_flags & CEPH_I_COMPLETE) == 0) {
dout(" marking %p complete (empty)\n", inode);
- ci->i_ceph_flags |= CEPH_I_COMPLETE;
+ /* ci->i_ceph_flags |= CEPH_I_COMPLETE; */
ci->i_max_offset = 2;
}
-
- /* it may be better to set st_size in getattr instead? */
- if (ceph_test_opt(ceph_sb_to_client(inode->i_sb), RBYTES))
- inode->i_size = ci->i_rbytes;
break;
default:
pr_err("fill_inode %llx.%llx BAD mode 0%o\n",
di->offset = ceph_inode(inode)->i_max_offset++;
spin_unlock(&inode->i_lock);
- spin_lock(&dcache_lock);
- spin_lock(&dn->d_lock);
+ spin_lock(&dir->d_lock);
+ spin_lock_nested(&dn->d_lock, DENTRY_D_LOCK_NESTED);
list_move(&dn->d_u.d_child, &dir->d_subdirs);
dout("set_dentry_offset %p %lld (%p %p)\n", dn, di->offset,
dn->d_u.d_child.prev, dn->d_u.d_child.next);
spin_unlock(&dn->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&dir->d_lock);
}
/*
} else if (realdn) {
dout("dn %p (%d) spliced with %p (%d) "
"inode %p ino %llx.%llx\n",
- dn, atomic_read(&dn->d_count),
- realdn, atomic_read(&realdn->d_count),
+ dn, dn->d_count,
+ realdn, realdn->d_count,
realdn->d_inode, ceph_vinop(realdn->d_inode));
dput(dn);
dn = realdn;
struct inode *in = NULL;
struct ceph_mds_reply_inode *ininfo;
struct ceph_vino vino;
- struct ceph_client *client = ceph_sb_to_client(sb);
+ struct ceph_fs_client *fsc = ceph_sb_to_client(sb);
int i = 0;
int err = 0;
*/
if (rinfo->head->is_dentry && !req->r_aborted &&
(rinfo->head->is_target || strncmp(req->r_dentry->d_name.name,
- client->mount_args->snapdir_name,
+ fsc->mount_options->snapdir_name,
req->r_dentry->d_name.len))) {
/*
* lookup link rename : null -> possibly existing inode
ininfo = rinfo->targeti.in;
vino.ino = le64_to_cpu(ininfo->ino);
vino.snap = le64_to_cpu(ininfo->snapid);
- if (!dn->d_inode) {
+ in = dn->d_inode;
+ if (!in) {
in = ceph_get_inode(sb, vino);
if (IS_ERR(in)) {
pr_err("fill_trace bad get_inode "
goto retry_lookup;
} else {
/* reorder parent's d_subdirs */
- spin_lock(&dcache_lock);
- spin_lock(&dn->d_lock);
+ spin_lock(&parent->d_lock);
+ spin_lock_nested(&dn->d_lock, DENTRY_D_LOCK_NESTED);
list_move(&dn->d_u.d_child, &parent->d_subdirs);
spin_unlock(&dn->d_lock);
- spin_unlock(&dcache_lock);
+ spin_unlock(&parent->d_lock);
}
di = dn->d_fsdata;
spin_lock(&inode->i_lock);
dout("invalidate_pages %p gen %d revoking %d\n", inode,
ci->i_rdcache_gen, ci->i_rdcache_revoking);
- if (ci->i_rdcache_gen == 0 ||
- ci->i_rdcache_revoking != ci->i_rdcache_gen) {
- BUG_ON(ci->i_rdcache_revoking > ci->i_rdcache_gen);
+ if (ci->i_rdcache_revoking != ci->i_rdcache_gen) {
/* nevermind! */
- ci->i_rdcache_revoking = 0;
spin_unlock(&inode->i_lock);
goto out;
}
ceph_invalidate_nondirty_pages(inode->i_mapping);
spin_lock(&inode->i_lock);
- if (orig_gen == ci->i_rdcache_gen) {
+ if (orig_gen == ci->i_rdcache_gen &&
+ orig_gen == ci->i_rdcache_revoking) {
dout("invalidate_pages %p gen %d successful\n", inode,
ci->i_rdcache_gen);
- ci->i_rdcache_gen = 0;
- ci->i_rdcache_revoking = 0;
+ ci->i_rdcache_revoking--;
check = 1;
} else {
- dout("invalidate_pages %p gen %d raced, gen now %d\n",
- inode, orig_gen, ci->i_rdcache_gen);
+ dout("invalidate_pages %p gen %d raced, now %d revoking %d\n",
+ inode, orig_gen, ci->i_rdcache_gen,
+ ci->i_rdcache_revoking);
}
spin_unlock(&inode->i_lock);
struct inode *parent_inode = dentry->d_parent->d_inode;
const unsigned int ia_valid = attr->ia_valid;
struct ceph_mds_request *req;
- struct ceph_mds_client *mdsc = &ceph_sb_to_client(dentry->d_sb)->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_client(dentry->d_sb)->mdsc;
int issued;
int release = 0, dirtied = 0;
int mask = 0;
*/
int ceph_do_getattr(struct inode *inode, int mask)
{
- struct ceph_client *client = ceph_sb_to_client(inode->i_sb);
- struct ceph_mds_client *mdsc = &client->mdsc;
+ struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
+ struct ceph_mds_client *mdsc = fsc->mdsc;
struct ceph_mds_request *req;
int err;
return 0;
}
- dout("do_getattr inode %p mask %s\n", inode, ceph_cap_string(mask));
+ dout("do_getattr inode %p mask %s mode 0%o\n", inode, ceph_cap_string(mask), inode->i_mode);
if (ceph_caps_issued_mask(ceph_inode(inode), mask, 1))
return 0;
* Check inode permissions. We verify we have a valid value for
* the AUTH cap, then call the generic handler.
*/
-int ceph_permission(struct inode *inode, int mask)
+int ceph_permission(struct inode *inode, int mask, unsigned int flags)
{
- int err = ceph_do_getattr(inode, CEPH_CAP_AUTH_SHARED);
+ int err;
+
+ if (flags & IPERM_FLAG_RCU)
+ return -ECHILD;
+
+ err = ceph_do_getattr(inode, CEPH_CAP_AUTH_SHARED);
if (!err)
- err = generic_permission(inode, mask, NULL);
+ err = generic_permission(inode, mask, flags, NULL);
return err;
}
else
stat->dev = 0;
if (S_ISDIR(inode->i_mode)) {
- stat->size = ci->i_rbytes;
+ if (ceph_test_mount_opt(ceph_sb_to_client(inode->i_sb),
+ RBYTES))
+ stat->size = ci->i_rbytes;
+ else
+ stat->size = ci->i_files + ci->i_subdirs;
stat->blocks = 0;
stat->blksize = 65536;
}
projects / mv-sheeva.git / blobdiff