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| author | Christoph Hellwig <hch@lst.de> | 2020-07-24 07:45:59 +0200 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-08-05 18:24:16 +0200 |
| commit | 60263d5889e6dc5987dc51b801be4955ff2e4aa7 (patch) | |
| tree | cb8418c747e19055b1416e993c3b00578046f520 /fs/ext4 | |
| parent | xfs: use ENOTBLK for direct I/O to buffered I/O fallback (diff) | |
| download | linux-60263d5889e6dc5987dc51b801be4955ff2e4aa7.tar.xz linux-60263d5889e6dc5987dc51b801be4955ff2e4aa7.zip | |
iomap: fall back to buffered writes for invalidation failures
Failing to invalid the page cache means data in incoherent, which is
a very bad state for the system. Always fall back to buffered I/O
through the page cache if we can't invalidate mappings.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Acked-by: Bob Peterson <rpeterso@redhat.com>
Acked-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu> # for ext4
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com> # for gfs2
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/file.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 2a01e31a032c..129cc1dd6b79 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -544,6 +544,8 @@ static ssize_t ext4_dio_write_iter(struct kiocb *iocb, struct iov_iter *from) iomap_ops = &ext4_iomap_overwrite_ops; ret = iomap_dio_rw(iocb, from, iomap_ops, &ext4_dio_write_ops, is_sync_kiocb(iocb) || unaligned_io || extend); + if (ret == -ENOTBLK) + ret = 0; if (extend) ret = ext4_handle_inode_extension(inode, offset, ret, count); |