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9287aed2ad
Convert isec->lock from a mutex into a spinlock. Instead of holding the lock while sleeping in inode_doinit_with_dentry, set isec->initialized to LABEL_PENDING and release the lock. Then, when the sid has been determined, re-acquire the lock. If isec->initialized is still set to LABEL_PENDING, set isec->sid; otherwise, the sid has been set by another task (LABEL_INITIALIZED) or invalidated (LABEL_INVALID) in the meantime. This fixes a deadlock on gfs2 where * one task is in inode_doinit_with_dentry -> gfs2_getxattr, holds isec->lock, and tries to acquire the inode's glock, and * another task is in do_xmote -> inode_go_inval -> selinux_inode_invalidate_secctx, holds the inode's glock, and tries to acquire isec->lock. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> [PM: minor tweaks to keep checkpatch.pl happy] Signed-off-by: Paul Moore <paul@paul-moore.com> |
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| .. | ||
| audit.h | ||
| avc_ss.h | ||
| avc.h | ||
| classmap.h | ||
| conditional.h | ||
| initial_sid_to_string.h | ||
| netif.h | ||
| netlabel.h | ||
| netnode.h | ||
| netport.h | ||
| objsec.h | ||
| security.h | ||
| xfrm.h | ||