diff options
| author | Wu Fengguang <fengguang.wu@intel.com> | 2010-08-11 03:01:29 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-11 17:59:02 +0200 |
| commit | 454eedb8901da895fb602998fa588cd62875d07d (patch) | |
| tree | 8ac0f8fead7c689dec077fb43efe3dbe3eab2e29 /include/asm-generic | |
| parent | vfs: improve comment describing fget_light() (diff) | |
| download | linux-454eedb8901da895fb602998fa588cd62875d07d.tar.xz linux-454eedb8901da895fb602998fa588cd62875d07d.zip | |
vfs: O_* bit numbers uniqueness check
The O_* bit numbers are defined in 20+ arch/*, and can silently overlap.
Add a compile time check to ensure the uniqueness as suggested by David
Miller.
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: David Miller <davem@davemloft.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: Roland Dreier <rdreier@cisco.com>
Cc: Jamie Lokier <jamie@shareable.org>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/fcntl.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h index e3cbc38bdcc2..a70b2d2bfc14 100644 --- a/include/asm-generic/fcntl.h +++ b/include/asm-generic/fcntl.h @@ -11,6 +11,10 @@ * -Eric Paris */ +/* + * When introducing new O_* bits, please check its uniqueness in fcntl_init(). + */ + #define O_ACCMODE 00000003 #define O_RDONLY 00000000 #define O_WRONLY 00000001 |