diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-06-30 00:38:32 +0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-07-05 21:13:17 +0400 |
| commit | f475ae957db66650db66916c62604ac27409d884 (patch) | |
| tree | 3b9c40dd20f1b7f3fcc59035941c4a084ce71a19 /include/linux | |
| parent | 5e66dd6d66ffe758b39b6dcadf2330753ee1159b (diff) | |
| download | linux-f475ae957db66650db66916c62604ac27409d884.tar.xz | |
VFS: Allow caller to determine if BSD or posix locks were actually freed
Change posix_lock_file_conf(), and flock_lock_file() so that if called
with an F_UNLCK argument, and the FL_EXISTS flag they will indicate
whether or not any locks were actually freed by returning 0 or -ENOENT.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 134b32068246..43aef9b230fd 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -716,6 +716,7 @@ extern spinlock_t files_lock; #define FL_POSIX 1 #define FL_FLOCK 2 #define FL_ACCESS 8 /* not trying to lock, just looking */ +#define FL_EXISTS 16 /* when unlocking, test for existence */ #define FL_LEASE 32 /* lease held on this file */ #define FL_CLOSE 64 /* unlock on close */ #define FL_SLEEP 128 /* A blocking lock */ |