diff options
| author | Jan Kara <jack@suse.cz> | 2005-09-06 15:19:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-07 16:57:55 -0700 |
| commit | a7662236253374012d364106b6dc9161bd929e2e (patch) | |
| tree | 59f34811d18fef8195bc3200bdb2684598175f29 /include | |
| parent | e6c9f5c1888097c936334bf9740024520ca47b8e (diff) | |
| download | linux-a7662236253374012d364106b6dc9161bd929e2e.tar.gz | |
[PATCH] Make ll_rw_block() wait for buffer lock
Introduce new ll_rw_block() operation SWRITE meaning that block layer should
wait for the buffer lock and write-out afterwards. Hence data in buffers at
the time of call are guaranteed to be submitted to the disk.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -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 7e1b589842afa2..fd93ab7da90504 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -69,6 +69,7 @@ extern int dir_notify_enable; #define READ 0 #define WRITE 1 #define READA 2 /* read-ahead - don't block if no resources */ +#define SWRITE 3 /* for ll_rw_block() - wait for buffer lock */ #define SPECIAL 4 /* For non-blockdevice requests in request queue */ #define READ_SYNC (READ | (1 << BIO_RW_SYNC)) #define WRITE_SYNC (WRITE | (1 << BIO_RW_SYNC)) |