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authorSage Weil <sage@inktank.com>2012-09-24 20:59:48 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-11-26 11:38:44 -0800
commitdfae3b3451c6da14df1fa62d76c8a4345d21bdb2 (patch)
treed674f1e1998b9ae902ab74f235e1bd39d31525d4 /kernel/rwsem.c
parent73bba6fc44591587254fec8e867a99b5a2a28ba7 (diff)
libceph: check for invalid mapping
(cherry picked from commit d63b77f4c552cc3a20506871046ab0fcbc332609) If we encounter an invalid (e.g., zeroed) mapping, return an error and avoid a divide by zero. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/rwsem.c')
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