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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-06 19:35:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-06 19:35:12 -0700
commit0e4656a299db8484933a143259e7e5ebae2e3a01 (patch)
tree8f44153b771b4e1b04ebcdaae13d03a16bcd8a15 /fs/xfs/xfs_file.c
parenteb65405eb6860935d54b8ba90a5e231e07378be1 (diff)
parent60263d5889e6dc5987dc51b801be4955ff2e4aa7 (diff)
Merge tag 'iomap-5.9-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull iomap updates from Darrick Wong: "The most notable changes are: - iomap no longer invalidates the page cache when performing a direct read, since doing so is unnecessary and the old directio code doesn't do that either. - iomap embraced the use of returning ENOTBLK from a direct write to trigger falling back to a buffered write since ext4 already did this and btrfs wants it for their port. - iomap falls back to buffered writes if we're doing a direct write and the page cache invalidation after the flush fails; this was necessary to handle a corner case in the btrfs port. - Remove email virus scanner detritus that was accidentally included in yesterday's pull request. Clearly I need(ed) to update my git branch checker scripts. :(" * tag 'iomap-5.9-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: iomap: fall back to buffered writes for invalidation failures xfs: use ENOTBLK for direct I/O to buffered I/O fallback iomap: Only invalidate page cache pages on direct IO writes iomap: Make sure iomap_end is called after iomap_begin
Diffstat (limited to 'fs/xfs/xfs_file.c')
-rw-r--r--fs/xfs/xfs_file.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index fdbff4860d61..d538411c3791 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -505,7 +505,7 @@ xfs_file_dio_aio_write(
*/
if (xfs_is_cow_inode(ip)) {
trace_xfs_reflink_bounce_dio_write(ip, iocb->ki_pos, count);
- return -EREMCHG;
+ return -ENOTBLK;
}
iolock = XFS_IOLOCK_EXCL;
} else {
@@ -553,8 +553,8 @@ out:
xfs_iunlock(ip, iolock);
/*
- * No fallback to buffered IO on errors for XFS, direct IO will either
- * complete fully or fail.
+ * No fallback to buffered IO after short writes for XFS, direct I/O
+ * will either complete fully or return an error.
*/
ASSERT(ret < 0 || ret == count);
return ret;
@@ -714,7 +714,7 @@ xfs_file_write_iter(
* allow an operation to fall back to buffered mode.
*/
ret = xfs_file_dio_aio_write(iocb, from);
- if (ret != -EREMCHG)
+ if (ret != -ENOTBLK)
return ret;
}