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authorDarrick J. Wong <darrick.wong@oracle.com>2020-10-01 15:21:48 -0700
committerTheodore Ts'o <tytso@mit.edu>2020-10-18 10:37:13 -0400
commitaf8c53c8bc087459b1aadd4c94805d8272358d79 (patch)
treefc3cf9709f023badf83b48cf536dab748d749dc2 /Documentation/RCU/rcubarrier.rst
parentaddd752cff27774258f593c68d283725398689c4 (diff)
ext4: limit entries returned when counting fsmap records
If userspace asked fsmap to try 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: 0c9ec4beecac ("ext4: support GETFSMAP ioctls") Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Link: https://lore.kernel.org/r/20201001222148.GA49520@magnolia Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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