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| author |  Chandan Babu R <chandanrlinux@gmail.com>
| 2021-01-22 16:48:11 -0800 |
|---|---|---|
| committer |  Darrick J. Wong <djwong@kernel.org>
| 2021-01-22 16:54:47 -0800 |
| commit | 727e1acd297cae15449607d6e2ee39c71216cf1a (patch) | |
| tree | 3057407785005630e7d01a6a6ed491a5c31fdde8 /fs/xfs/xfs_iomap.c | |
| parent | xfs: Add helper for checking per-inode extent count overflow (diff) | |
| download | linux-727e1acd297cae15449607d6e2ee39c71216cf1a.tar.gz linux-727e1acd297cae15449607d6e2ee39c71216cf1a.tar.bz2 linux-727e1acd297cae15449607d6e2ee39c71216cf1a.zip | |
xfs: Check for extent overflow when trivally adding a new extent
When adding a new data extent (without modifying an inode's existing
extents) the extent count increases only by 1. This commit checks for
extent count overflow in such cases.
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_iomap.c')
| -rw-r--r-- | fs/xfs/xfs_iomap.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 7b9ff824e82d..32246d90b9cb 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -250,6 +250,11 @@ xfs_iomap_write_direct( if (error) goto out_trans_cancel; + error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK, + XFS_IEXT_ADD_NOSPLIT_CNT); + if (error) + goto out_res_cancel; + xfs_trans_ijoin(tp, ip, 0); /* |