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| author | James Bottomley <James.Bottomley@suse.de> | 2010-09-09 16:38:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-09-09 18:57:25 -0700 |
| commit | 3ab04d5cf9736b7a4e9dfcf28285d8663b01aa0e (patch) | |
| tree | 1e8a52d0c2592d6d4a14d988dbf55331cc07fd24 /fs/fcntl.c | |
| parent | 3399446632739fcd05fd8b272b476a69c6e6d14a (diff) | |
| download | lwn-3ab04d5cf9736b7a4e9dfcf28285d8663b01aa0e.tar.gz lwn-3ab04d5cf9736b7a4e9dfcf28285d8663b01aa0e.zip | |
vfs: take O_NONBLOCK out of the O_* uniqueness test
O_NONBLOCK on parisc has a dual value:
#define O_NONBLOCK 000200004 /* HPUX has separate NDELAY & NONBLOCK */
It is caught by the O_* bits uniqueness check and leads to a parisc
compile error. The fix would be to take O_NONBLOCK out.
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Cc: Jamie Lokier <jamie@shareable.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/fcntl.c')
| -rw-r--r-- | fs/fcntl.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/fcntl.c b/fs/fcntl.c index 6769fd0f35b8..f8cc34f542c3 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -769,11 +769,15 @@ EXPORT_SYMBOL(kill_fasync); static int __init fcntl_init(void) { - /* please add new bits here to ensure allocation uniqueness */ - BUILD_BUG_ON(19 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32( + /* + * Please add new bits here to ensure allocation uniqueness. + * Exceptions: O_NONBLOCK is a two bit define on parisc; O_NDELAY + * is defined as O_NONBLOCK on some platforms and not on others. + */ + BUILD_BUG_ON(18 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32( O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | - O_TRUNC | O_APPEND | O_NONBLOCK | + O_TRUNC | O_APPEND | /* O_NONBLOCK | */ __O_SYNC | O_DSYNC | FASYNC | O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | O_NOATIME | O_CLOEXEC | |