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authorJeff Layton <jlayton@primarydata.com>2015-01-16 23:05:57 +0300
committerJeff Layton <jeff.layton@primarydata.com>2015-01-17 00:08:49 +0300
commit6109c85037e53443f29fd39c0de69f578a1cf285 (patch)
tree56823d1615acbba20c858eed9d16cf443cd55872 /fs/lockd
parenta7231a97467d5a0c36f82f581c76c12c034e4b80 (diff)
downloadlinux-6109c85037e53443f29fd39c0de69f578a1cf285.tar.xz
locks: add a dedicated spinlock to protect i_flctx lists
We can now add a dedicated spinlock without expanding struct inode. Change to using that to protect the various i_flctx lists. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Acked-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/lockd')
-rw-r--r--fs/lockd/svcsubs.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 5300bb53835f..665ef5a05183 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -171,7 +171,7 @@ nlm_traverse_locks(struct nlm_host *host, struct nlm_file *file,
return 0;
again:
file->f_locks = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&flctx->flc_lock);
list_for_each_entry(fl, &flctx->flc_posix, fl_list) {
if (fl->fl_lmops != &nlmsvc_lock_operations)
continue;
@@ -183,7 +183,7 @@ again:
if (match(lockhost, host)) {
struct file_lock lock = *fl;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&flctx->flc_lock);
lock.fl_type = F_UNLCK;
lock.fl_start = 0;
lock.fl_end = OFFSET_MAX;
@@ -195,7 +195,7 @@ again:
goto again;
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&flctx->flc_lock);
return 0;
}
@@ -232,14 +232,14 @@ nlm_file_inuse(struct nlm_file *file)
return 1;
if (flctx && !list_empty_careful(&flctx->flc_posix)) {
- spin_lock(&inode->i_lock);
+ spin_lock(&flctx->flc_lock);
list_for_each_entry(fl, &flctx->flc_posix, fl_list) {
if (fl->fl_lmops == &nlmsvc_lock_operations) {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&flctx->flc_lock);
return 1;
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&flctx->flc_lock);
}
file->f_locks = 0;
return 0;