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authorChristoph Hellwig <hch@lst.de>2006-03-20 13:44:40 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:40 -0500
commit26bcbf965f857c710adafd16cf424f043006b5dd (patch)
treefa3c1e4ba07ab3d1e4e61b27c7579c57fd2d5c65 /include/linux/nfs_fs_i.h
parent04266473ecf5cdca242201d9f1ed890afe070fb6 (diff)
lockd: stop abusing file_lock_list
Currently lockd directly access the file_lock_list from fs/locks.c. It does so to mark locks granted or reclaimable. This is very suboptimal, because a) lockd needs to poke into locks.c internals, and b) it needs to iterate over all locks in the system for marking locks granted or reclaimable. This patch adds lists for granted and reclaimable locks to the nlm_host structure instead, and adds locks to those. nlmclnt_lock: now adds the lock to h_granted instead of setting the NFS_LCK_GRANTED, still O(1) nlmclnt_mark_reclaim: goes away completely, replaced by a list_splice_init. Complexity reduced from O(locks in the system) to O(1) reclaimer: iterates over h_reclaim now, complexity reduced from O(locks in the system) to O(locks per nlm_host) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_fs_i.h')
-rw-r--r--include/linux/nfs_fs_i.h8
1 files changed, 1 insertions, 7 deletions
diff --git a/include/linux/nfs_fs_i.h b/include/linux/nfs_fs_i.h
index e2c18dabff8..861730275ba 100644
--- a/include/linux/nfs_fs_i.h
+++ b/include/linux/nfs_fs_i.h
@@ -12,8 +12,8 @@ struct nlm_lockowner;
12 */ 12 */
13struct nfs_lock_info { 13struct nfs_lock_info {
14 u32 state; 14 u32 state;
15 u32 flags;
16 struct nlm_lockowner *owner; 15 struct nlm_lockowner *owner;
16 struct list_head list;
17}; 17};
18 18
19struct nfs4_lock_state; 19struct nfs4_lock_state;
@@ -21,10 +21,4 @@ struct nfs4_lock_info {
21 struct nfs4_lock_state *owner; 21 struct nfs4_lock_state *owner;
22}; 22};
23 23
24/*
25 * Lock flag values
26 */
27#define NFS_LCK_GRANTED 0x0001 /* lock has been granted */
28#define NFS_LCK_RECLAIM 0x0002 /* lock marked for reclaiming */
29
30#endif 24#endif