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| author | Christoph Hellwig <hch@lst.de> | 2020-05-23 09:30:13 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2020-06-03 23:16:55 -0400 |
| commit | cddf8a2c4a8286ae60fc866eab59c8bc524e93a0 (patch) | |
| tree | c3f18f1243c85c5f3d67aa2d4f7afc44f3feccb8 /fs/ext4 | |
| parent | 2732881894714f545ffac42dad7ba7730069874d (diff) | |
| download | linux-cddf8a2c4a8286ae60fc866eab59c8bc524e93a0.tar.gz linux-cddf8a2c4a8286ae60fc866eab59c8bc524e93a0.tar.bz2 linux-cddf8a2c4a8286ae60fc866eab59c8bc524e93a0.zip | |
fs: move fiemap range validation into the file systems instances
Replace fiemap_check_flags with a fiemap_prep helper that also takes the
inode and mapped range, and performs the sanity check and truncation
previously done in fiemap_check_range. This way the validation is inside
the file system itself and thus properly works for the stacked overlayfs
case as well.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Link: https://lore.kernel.org/r/20200523073016.2944131-7-hch@lst.de
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/extents.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index b365c8b407c4..cea083efb650 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -4938,8 +4938,9 @@ int ext4_get_es_cache(struct inode *inode, struct fiemap_extent_info *fieinfo, fieinfo->fi_flags &= ~FIEMAP_FLAG_CACHE; } - if (fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC)) - return -EBADR; + error = fiemap_prep(inode, fieinfo, start, &len, FIEMAP_FLAG_SYNC); + if (error) + return error; error = ext4_fiemap_check_ranges(inode, start, &len); if (error) |