diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-23 19:36:02 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-23 19:36:02 -0700 |
commit | cf5434e894a17bb8385997adc6d56642055a85d6 (patch) | |
tree | 60a02d312038f24ca24578ebefb47391d4a63c13 /fs/ocfs2/dlmglue.h | |
parent | 7b58fc21847950db8fcc6a142288b042564ffb76 (diff) | |
parent | d246ab307d1d003c80fe279897dea22bf52b6e41 (diff) |
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
ocfs2/trivial: Wrap ocfs2_sysfile_cluster_lock_key within define.
ocfs2: Add lockdep annotations
vfs: Set special lockdep map for dirs only if not set by fs
ocfs2: Disable orphan scanning for local and hard-ro mounts
ocfs2: Do not initialize lvb in ocfs2_orphan_scan_lock_res_init()
ocfs2: Stop orphan scan as early as possible during umount
ocfs2: Fix ocfs2_osb_dump()
ocfs2: Pin journal head before accessing jh->b_committed_data
ocfs2: Update atime in splice read if necessary.
ocfs2: Provide the ocfs2_dlm_lvb_valid() stack API.
Diffstat (limited to 'fs/ocfs2/dlmglue.h')
-rw-r--r-- | fs/ocfs2/dlmglue.h | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h index 31b90d7b8f5..7553836931d 100644 --- a/fs/ocfs2/dlmglue.h +++ b/fs/ocfs2/dlmglue.h @@ -78,6 +78,14 @@ struct ocfs2_orphan_scan_lvb { /* don't block waiting for the downconvert thread, instead return -EAGAIN */ #define OCFS2_LOCK_NONBLOCK (0x04) +/* Locking subclasses of inode cluster lock */ +enum { + OI_LS_NORMAL = 0, + OI_LS_PARENT, + OI_LS_RENAME1, + OI_LS_RENAME2, +}; + int ocfs2_dlm_init(struct ocfs2_super *osb); void ocfs2_dlm_shutdown(struct ocfs2_super *osb, int hangup_pending); void ocfs2_lock_res_init_once(struct ocfs2_lock_res *res); @@ -104,25 +112,31 @@ void ocfs2_open_unlock(struct inode *inode); int ocfs2_inode_lock_atime(struct inode *inode, struct vfsmount *vfsmnt, int *level); -int ocfs2_inode_lock_full(struct inode *inode, +int ocfs2_inode_lock_full_nested(struct inode *inode, struct buffer_head **ret_bh, int ex, - int arg_flags); + int arg_flags, + int subclass); int ocfs2_inode_lock_with_page(struct inode *inode, struct buffer_head **ret_bh, int ex, struct page *page); +/* Variants without special locking class or flags */ +#define ocfs2_inode_lock_full(i, r, e, f)\ + ocfs2_inode_lock_full_nested(i, r, e, f, OI_LS_NORMAL) +#define ocfs2_inode_lock_nested(i, b, e, s)\ + ocfs2_inode_lock_full_nested(i, b, e, 0, s) /* 99% of the time we don't want to supply any additional flags -- * those are for very specific cases only. */ -#define ocfs2_inode_lock(i, b, e) ocfs2_inode_lock_full(i, b, e, 0) +#define ocfs2_inode_lock(i, b, e) ocfs2_inode_lock_full_nested(i, b, e, 0, OI_LS_NORMAL) void ocfs2_inode_unlock(struct inode *inode, int ex); int ocfs2_super_lock(struct ocfs2_super *osb, int ex); void ocfs2_super_unlock(struct ocfs2_super *osb, int ex); -int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno, int ex); -void ocfs2_orphan_scan_unlock(struct ocfs2_super *osb, u32 seqno, int ex); +int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno); +void ocfs2_orphan_scan_unlock(struct ocfs2_super *osb, u32 seqno); int ocfs2_rename_lock(struct ocfs2_super *osb); void ocfs2_rename_unlock(struct ocfs2_super *osb); |