7a39f52202
read_trylock() is broken on sparc32 (doesn't build and didn't work right, actually). Proposed fix: - make "writer holds lock" distinguishable from "reader tries to grab lock" - have __raw_read_trylock() try to acquire the mutex (in LSB of lock), terminating spin if we see that there's writer holding it. Then do the rest as we do in read_lock(). Thanks to Ingo for discussion... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
||
|---|---|---|
| .. | ||
| ashldi3.S | ||
| ashrdi3.S | ||
| atomic32.c | ||
| atomic.S | ||
| bitext.c | ||
| bitops.S | ||
| blockops.S | ||
| checksum.S | ||
| copy_user.S | ||
| COPYING.LIB | ||
| divdi3.S | ||
| iomap.c | ||
| locks.S | ||
| lshrdi3.S | ||
| Makefile | ||
| memcmp.S | ||
| memcpy.S | ||
| memscan.S | ||
| memset.S | ||
| mul.S | ||
| muldi3.S | ||
| rem.S | ||
| rwsem.S | ||
| sdiv.S | ||
| strlen_user.S | ||
| strlen.S | ||
| strncmp.S | ||
| strncpy_from_user.S | ||
| udiv.S | ||
| udivdi3.S | ||
| umul.S | ||
| urem.S | ||