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authorChristoph Hellwig <hch@lst.de>2018-03-14 09:15:32 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2018-03-15 20:31:38 +0300
commitf5c54717bf2b9e052bb69d6ee19fe22e87817079 (patch)
tree85180b0cccbbd36f387de72e662507592191b808 /fs/xfs/xfs_file.c
parentc7dbe3f2c41969845b8ea000fc5e025d4987a8fb (diff)
downloadlinux-f5c54717bf2b9e052bb69d6ee19fe22e87817079.tar.xz
xfs: remove xfs_zero_range
This helper doesn't add any real value over just calling iomap_zero_range directly, so remove it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_file.c')
-rw-r--r--fs/xfs/xfs_file.c48
1 files changed, 7 insertions, 41 deletions
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index f5c5dbbf1792..299aee4b7b0b 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -48,20 +48,6 @@
static const struct vm_operations_struct xfs_file_vm_ops;
-/*
- * Clear the specified ranges to zero through either the pagecache or DAX.
- * Holes and unwritten extents will be left as-is as they already are zeroed.
- */
-int
-xfs_zero_range(
- struct xfs_inode *ip,
- xfs_off_t pos,
- xfs_off_t count,
- bool *did_zero)
-{
- return iomap_zero_range(VFS_I(ip), pos, count, did_zero, &xfs_iomap_ops);
-}
-
int
xfs_update_prealloc_flags(
struct xfs_inode *ip,
@@ -301,31 +287,6 @@ xfs_file_read_iter(
}
/*
- * Zero any on disk space between the current EOF and the new, larger EOF.
- *
- * This handles the normal case of zeroing the remainder of the last block in
- * the file and the unusual case of zeroing blocks out beyond the size of the
- * file. This second case only happens with fixed size extents and when the
- * system crashes before the inode size was updated but after blocks were
- * allocated.
- *
- * Expects the iolock to be held exclusive, and will take the ilock internally.
- */
-int /* error (positive) */
-xfs_zero_eof(
- struct xfs_inode *ip,
- xfs_off_t offset, /* starting I/O offset */
- xfs_fsize_t isize, /* current inode size */
- bool *did_zeroing)
-{
- ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
- ASSERT(offset > isize);
-
- trace_xfs_zero_eof(ip, isize, offset - isize);
- return xfs_zero_range(ip, isize, offset - isize, did_zeroing);
-}
-
-/*
* Common pre-write limit and setup checks.
*
* Called with the iolocked held either shared and exclusive according to
@@ -344,6 +305,7 @@ xfs_file_aio_write_checks(
ssize_t error = 0;
size_t count = iov_iter_count(from);
bool drained_dio = false;
+ loff_t isize;
restart:
error = generic_write_checks(iocb, from);
@@ -380,7 +342,8 @@ restart:
* and hence be able to correctly determine if we need to run zeroing.
*/
spin_lock(&ip->i_flags_lock);
- if (iocb->ki_pos > i_size_read(inode)) {
+ isize = i_size_read(inode);
+ if (iocb->ki_pos > isize) {
spin_unlock(&ip->i_flags_lock);
if (!drained_dio) {
if (*iolock == XFS_IOLOCK_SHARED) {
@@ -401,7 +364,10 @@ restart:
drained_dio = true;
goto restart;
}
- error = xfs_zero_eof(ip, iocb->ki_pos, i_size_read(inode), NULL);
+
+ trace_xfs_zero_eof(ip, isize, iocb->ki_pos - isize);
+ error = iomap_zero_range(inode, isize, iocb->ki_pos - isize,
+ NULL, &xfs_iomap_ops);
if (error)
return error;
} else