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| author | J. Bruce Fields <bfields@citi.umich.edu> | 2007-05-11 16:09:32 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2007-07-18 19:17:19 -0400 |
| commit | 6d34ac199a4af5c678a3a8f3275aeb2586b72da3 (patch) | |
| tree | 4ab6cffcfe993baa0afb2ab361a8c94ebfc3a444 | |
| parent | 370f6599e8bc03fd9fc6d1a1be00ae0c6373ca59 (diff) | |
| download | linux-3.10-6d34ac199a4af5c678a3a8f3275aeb2586b72da3.tar.gz linux-3.10-6d34ac199a4af5c678a3a8f3275aeb2586b72da3.tar.bz2 linux-3.10-6d34ac199a4af5c678a3a8f3275aeb2586b72da3.zip | |
locks: make posix_test_lock() interface more consistent
Since posix_test_lock(), like fcntl() and ->lock(), indicates absence or
presence of a conflict lock by setting fl_type to, respectively, F_UNLCK
or something other than F_UNLCK, the return value is no longer needed.
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
| -rw-r--r-- | fs/locks.c | 10 | ||||
| -rw-r--r-- | fs/nfs/file.c | 4 | ||||
| -rw-r--r-- | include/linux/fs.h | 2 |
3 files changed, 8 insertions, 8 deletions
diff --git a/fs/locks.c b/fs/locks.c index 4c73b857dde..4a8072736ef 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -659,7 +659,7 @@ static int locks_block_on_timeout(struct file_lock *blocker, struct file_lock *w return result; } -int +void posix_test_lock(struct file *filp, struct file_lock *fl) { struct file_lock *cfl; @@ -671,14 +671,12 @@ posix_test_lock(struct file *filp, struct file_lock *fl) if (posix_locks_conflict(cfl, fl)) break; } - if (cfl) { + if (cfl) __locks_copy_lock(fl, cfl); - unlock_kernel(); - return 1; - } else + else fl->fl_type = F_UNLCK; unlock_kernel(); - return 0; + return; } EXPORT_SYMBOL(posix_test_lock); diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 13ac6fa2b62..c87dc713b5d 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -402,7 +402,9 @@ static int do_getlk(struct file *filp, int cmd, struct file_lock *fl) lock_kernel(); /* Try local locking first */ - if (posix_test_lock(filp, fl)) { + posix_test_lock(filp, fl); + if (fl->fl_type != F_UNLCK) { + /* found a conflict */ goto out; } diff --git a/include/linux/fs.h b/include/linux/fs.h index b188c2e5338..80deaaf1b74 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -862,7 +862,7 @@ extern void locks_init_lock(struct file_lock *); extern void locks_copy_lock(struct file_lock *, struct file_lock *); extern void locks_remove_posix(struct file *, fl_owner_t); extern void locks_remove_flock(struct file *); -extern int posix_test_lock(struct file *, struct file_lock *); +extern void posix_test_lock(struct file *, struct file_lock *); extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *); extern int posix_lock_file_wait(struct file *, struct file_lock *); extern int posix_unblock_lock(struct file *, struct file_lock *); |