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| author | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:50:06 +1100 |
|---|---|---|
| committer | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:50:31 +1100 |
| commit | 873feea09ebc980cbd3631b767356ce1eee65ec1 (patch) | |
| tree | 59a8fce9b138086abee7cf845f62ff70a390cf81 /fs/nfs/getroot.c | |
| parent | ceb5bdc2d246f6d81cf61ed70f325308a11821d2 (diff) | |
| download | linux-873feea09ebc980cbd3631b767356ce1eee65ec1.tar.gz | |
fs: dcache per-inode inode alias locking
dcache_inode_lock can be replaced with per-inode locking. Use existing
inode->i_lock for this. This is slightly non-trivial because we sometimes
need to find the inode from the dentry, which requires d_inode to be
stabilised (either with refcount or d_lock).
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/nfs/getroot.c')
| -rw-r--r-- | fs/nfs/getroot.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c index c3a5a1126833..5596c6a2881e 100644 --- a/fs/nfs/getroot.c +++ b/fs/nfs/getroot.c @@ -63,11 +63,11 @@ static int nfs_superblock_set_dummy_root(struct super_block *sb, struct inode *i * This again causes shrink_dcache_for_umount_subtree() to * Oops, since the test for IS_ROOT() will fail. */ - spin_lock(&dcache_inode_lock); + spin_lock(&sb->s_root->d_inode->i_lock); spin_lock(&sb->s_root->d_lock); list_del_init(&sb->s_root->d_alias); spin_unlock(&sb->s_root->d_lock); - spin_unlock(&dcache_inode_lock); + spin_unlock(&sb->s_root->d_inode->i_lock); } return 0; } |