From 6d34ac199a4af5c678a3a8f3275aeb2586b72da3 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Fri, 11 May 2007 16:09:32 -0400 Subject: [PATCH] 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" --- fs/locks.c | 10 ++++------ fs/nfs/file.c | 4 +++- include/linux/fs.h | 2 +- 3 files changed, 8 insertions(+), 8 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index 4c73b857dded..4a8072736efa 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 13ac6fa2b62b..c87dc713b5d7 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 b188c2e5338d..80deaaf1b746 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 *); -- 2.39.2