*/
#include "xfs.h"
#include "xfs_fs.h"
-#include "xfs_log.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_trans.h"
#include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc.h"
-#include "xfs_dinode.h"
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
#include "xfs_inode.h"
+#include "xfs_trans.h"
#include "xfs_inode_item.h"
#include "xfs_bmap.h"
#include "xfs_bmap_util.h"
#include "xfs_error.h"
-#include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
#include "xfs_dir2.h"
#include "xfs_dir2_priv.h"
#include "xfs_ioctl.h"
#include "xfs_trace.h"
+#include "xfs_log.h"
+#include "xfs_dinode.h"
#include <linux/aio.h>
#include <linux/dcache.h>
}
STATIC ssize_t
-xfs_file_aio_read(
+xfs_file_read_iter(
struct kiocb *iocb,
- const struct iovec *iovp,
- unsigned long nr_segs,
+ struct iov_iter *iter,
loff_t pos)
{
struct file *file = iocb->ki_filp;
if (file->f_mode & FMODE_NOCMTIME)
ioflags |= IO_INVIS;
- ret = generic_segment_checks(iovp, &nr_segs, &size, VERIFY_WRITE);
- if (ret < 0)
- return ret;
+ size = iov_iter_count(iter);
if (unlikely(ioflags & IO_ISDIRECT)) {
xfs_buftarg_t *target =
trace_xfs_file_read(ip, size, pos, ioflags);
- ret = generic_file_aio_read(iocb, iovp, nr_segs, pos);
+ ret = generic_file_read_iter(iocb, iter, pos);
if (ret > 0)
XFS_STATS_ADD(xs_read_bytes, ret);
STATIC ssize_t
xfs_file_dio_aio_write(
struct kiocb *iocb,
- const struct iovec *iovp,
- unsigned long nr_segs,
+ struct iov_iter *iter,
loff_t pos,
- size_t ocount)
+ size_t count)
{
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
ssize_t ret = 0;
- size_t count = ocount;
int unaligned_io = 0;
int iolock;
struct xfs_buftarg *target = XFS_IS_REALTIME_INODE(ip) ?
}
trace_xfs_file_direct_write(ip, count, iocb->ki_pos, 0);
- ret = generic_file_direct_write(iocb, iovp,
- &nr_segs, pos, &iocb->ki_pos, count, ocount);
+ ret = generic_file_direct_write_iter(iocb, iter,
+ pos, &iocb->ki_pos, count);
out:
xfs_rw_iunlock(ip, iolock);
STATIC ssize_t
xfs_file_buffered_aio_write(
struct kiocb *iocb,
- const struct iovec *iovp,
- unsigned long nr_segs,
+ struct iov_iter *iter,
loff_t pos,
- size_t ocount)
+ size_t count)
{
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
ssize_t ret;
int enospc = 0;
int iolock = XFS_IOLOCK_EXCL;
- size_t count = ocount;
xfs_rw_ilock(ip, iolock);
write_retry:
trace_xfs_file_buffered_write(ip, count, iocb->ki_pos, 0);
- ret = generic_file_buffered_write(iocb, iovp, nr_segs,
+ ret = generic_file_buffered_write_iter(iocb, iter,
pos, &iocb->ki_pos, count, 0);
/*
}
STATIC ssize_t
-xfs_file_aio_write(
+xfs_file_write_iter(
struct kiocb *iocb,
- const struct iovec *iovp,
- unsigned long nr_segs,
+ struct iov_iter *iter,
loff_t pos)
{
struct file *file = iocb->ki_filp;
struct inode *inode = mapping->host;
struct xfs_inode *ip = XFS_I(inode);
ssize_t ret;
- size_t ocount = 0;
+ size_t count = 0;
XFS_STATS_INC(xs_write_calls);
BUG_ON(iocb->ki_pos != pos);
- ret = generic_segment_checks(iovp, &nr_segs, &ocount, VERIFY_READ);
- if (ret)
- return ret;
+ count = iov_iter_count(iter);
- if (ocount == 0)
+ if (count == 0)
return 0;
if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
}
if (unlikely(file->f_flags & O_DIRECT))
- ret = xfs_file_dio_aio_write(iocb, iovp, nr_segs, pos, ocount);
+ ret = xfs_file_dio_aio_write(iocb, iter, pos, count);
else
- ret = xfs_file_buffered_aio_write(iocb, iovp, nr_segs, pos,
- ocount);
+ ret = xfs_file_buffered_aio_write(iocb, iter, pos, count);
if (ret > 0) {
ssize_t err;
STATIC long
xfs_file_fallocate(
- struct file *file,
- int mode,
- loff_t offset,
- loff_t len)
+ struct file *file,
+ int mode,
+ loff_t offset,
+ loff_t len)
{
- struct inode *inode = file_inode(file);
- long error;
- loff_t new_size = 0;
- xfs_flock64_t bf;
- xfs_inode_t *ip = XFS_I(inode);
- int cmd = XFS_IOC_RESVSP;
- int attr_flags = XFS_ATTR_NOLOCK;
+ struct inode *inode = file_inode(file);
+ struct xfs_inode *ip = XFS_I(inode);
+ struct xfs_trans *tp;
+ long error;
+ loff_t new_size = 0;
+ if (!S_ISREG(inode->i_mode))
+ return -EINVAL;
if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
return -EOPNOTSUPP;
- bf.l_whence = 0;
- bf.l_start = offset;
- bf.l_len = len;
-
xfs_ilock(ip, XFS_IOLOCK_EXCL);
+ if (mode & FALLOC_FL_PUNCH_HOLE) {
+ error = xfs_free_file_space(ip, offset, len);
+ if (error)
+ goto out_unlock;
+ } else {
+ if (!(mode & FALLOC_FL_KEEP_SIZE) &&
+ offset + len > i_size_read(inode)) {
+ new_size = offset + len;
+ error = -inode_newsize_ok(inode, new_size);
+ if (error)
+ goto out_unlock;
+ }
- if (mode & FALLOC_FL_PUNCH_HOLE)
- cmd = XFS_IOC_UNRESVSP;
-
- /* check the new inode size is valid before allocating */
- if (!(mode & FALLOC_FL_KEEP_SIZE) &&
- offset + len > i_size_read(inode)) {
- new_size = offset + len;
- error = inode_newsize_ok(inode, new_size);
+ error = xfs_alloc_file_space(ip, offset, len,
+ XFS_BMAPI_PREALLOC);
if (error)
goto out_unlock;
}
- if (file->f_flags & O_DSYNC)
- attr_flags |= XFS_ATTR_SYNC;
+ tp = xfs_trans_alloc(ip->i_mount, XFS_TRANS_WRITEID);
+ error = xfs_trans_reserve(tp, &M_RES(ip->i_mount)->tr_writeid, 0, 0);
+ if (error) {
+ xfs_trans_cancel(tp, 0);
+ goto out_unlock;
+ }
+
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+ ip->i_d.di_mode &= ~S_ISUID;
+ if (ip->i_d.di_mode & S_IXGRP)
+ ip->i_d.di_mode &= ~S_ISGID;
+
+ if (!(mode & FALLOC_FL_PUNCH_HOLE))
+ ip->i_d.di_flags |= XFS_DIFLAG_PREALLOC;
- error = -xfs_change_file_space(ip, cmd, &bf, 0, attr_flags);
+ xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+ xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
+ if (file->f_flags & O_DSYNC)
+ xfs_trans_set_sync(tp);
+ error = xfs_trans_commit(tp, 0);
if (error)
goto out_unlock;
iattr.ia_valid = ATTR_SIZE;
iattr.ia_size = new_size;
- error = -xfs_setattr_size(ip, &iattr, XFS_ATTR_NOLOCK);
+ error = xfs_setattr_size(ip, &iattr);
}
out_unlock:
xfs_iunlock(ip, XFS_IOLOCK_EXCL);
- return error;
+ return -error;
}
.llseek = xfs_file_llseek,
.read = do_sync_read,
.write = do_sync_write,
- .aio_read = xfs_file_aio_read,
- .aio_write = xfs_file_aio_write,
+ .read_iter = xfs_file_read_iter,
+ .write_iter = xfs_file_write_iter,
.splice_read = xfs_file_splice_read,
.splice_write = xfs_file_splice_write,
.unlocked_ioctl = xfs_file_ioctl,
projects / karo-tx-linux.git / blobdiff