| commit | 1af95de6f0119d5bde02d3a811a9f3a3661e954e | [log] [tgz] |
|---|---|---|
| author | Wang YanQing <udknight@gmail.com> | Tue Jun 23 18:54:45 2015 +0800 |
| committer | Al Viro <viro@zeniv.linux.org.uk> | Wed Jul 01 01:50:06 2015 -0400 |
| tree | 703a419f2f4c0203683b9030450d54bfaf1f76d8 | |
| parent | 2adc376c551943a07170cbe70f43e6d6065f8906 [diff] |
fs:super:get_anon_bdev: fix race condition could cause dev exceed its upper limitation Execution of get_anon_bdev concurrently and preemptive kernel all could bring race condition, it isn't enough to check dev against its upper limitation with equality operator only. This patch fix it. Signed-off-by: Wang YanQing <udknight@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>