diff options
author | Darrick J. Wong <darrick.wong@oracle.com> | 2020-10-01 10:56:07 -0700 |
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committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-10-07 08:40:29 -0700 |
commit | acd1ac3aa22fd58803a12d26b1ab7f70232f8d8d (patch) | |
tree | 92a1d1bad509ebe50a716e99a1103c85b6686944 /fs/xfs/xfs_rtalloc.h | |
parent | 74f4d6a1e065c92428c5b588099e307a582d79d9 (diff) |
xfs: limit entries returned when counting fsmap records
If userspace asked fsmap to count the number of entries, we cannot
return more than UINT_MAX entries because fmh_entries is u32.
Therefore, stop counting if we hit this limit or else we will waste time
to return truncated results.
Fixes: e89c041338ed ("xfs: implement the GETFSMAP ioctl")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Diffstat (limited to 'fs/xfs/xfs_rtalloc.h')
0 files changed, 0 insertions, 0 deletions