diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2018-04-16 23:07:36 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-05-02 09:21:33 -0700 |
| commit | 021ba8e98fe5c6691b3cc3669faafa02403aa211 (patch) | |
| tree | 9b4b92b15794cb1e2c7a70f7dae329b3923679b2 /mm/Kconfig | |
| parent | 7b38460dc8e4eafba06c78f8e37099d3b34d473c (diff) | |
xfs: cap the length of deduplication requestsxfs-4.17-fixes-2
Since deduplication potentially has to read in all the pages in both
files in order to compare the contents, cap the deduplication request
length at MAX_RW_COUNT/2 (roughly 1GB) so that we have /some/ upper bound
on the request length and can't just lock up the kernel forever. Found
by running generic/304 after commit 1ddae54555b62 ("common/rc: add
missing 'local' keywords").
Reported-by: matorola@gmail.com
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Diffstat (limited to 'mm/Kconfig')
0 files changed, 0 insertions, 0 deletions