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| author | kib <kib@FreeBSD.org> | 2010-06-20 13:35:16 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2010-06-20 13:35:16 +0000 |
| commit | e735ee5c8d1c56d4d050c3db2b30b65da1b04642 (patch) | |
| tree | 99ea5fd01bccf95f5df89ea1cd7a141627c24669 /sys/kern/kern_clock.c | |
| parent | 01e81eb99e553eaf40221a7ac49c862a8b7f9d87 (diff) | |
| download | FreeBSD-src-e735ee5c8d1c56d4d050c3db2b30b65da1b04642.zip FreeBSD-src-e735ee5c8d1c56d4d050c3db2b30b65da1b04642.tar.gz | |
Ensure that VOP_ACCESSX is called with exclusively locked vnode for
the kernel compiled with QUOTA option. ufs_accessx() upgrades the vdp
vnode lock from shared to exclusive to assign the dquot structure to
the vnode, and ufs_delete_denied() is called when tvp is locked. Since
upgrade drops shared lock when non-blocked upgrade failed, LOR is there.
Reported and tested by: Dmitry Pryanishnikov <lynx.ripe gmail com>
Tested by: pho
PR: kern/147890
MFC after: 1 week
Diffstat (limited to 'sys/kern/kern_clock.c')
0 files changed, 0 insertions, 0 deletions
