forked from luck/tmp_suning_uos_patched
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> |
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| boot | ||
| kernel | ||
| lib | ||
| math-emu | ||
| mm | ||
| prom | ||
| defconfig | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||