Al Viro 14203e19cb microblaze: fix the horror with restarts of sigreturn() ... solution a-la arm one - pick a callee-saved register (r30), set it non-zero when entering a syscall, have sigreturn wrapper zero it out and pass the value in it to do_notify_resume() as "in_syscall" (actually, "restarts allowed") argument. Note that we don't give a damn about ret_from_fork() - return value is not restart-worthy anyway. Possible remaining bug: on !MMU we still have _debug_exception() restartable. If it hits with -ERESTART_... accidentally in r3, fun happens. MMU does _not_ have _debug_exception() restartable. If that's decided to be a bug (as I strongly suspect it to be), we'll just need to replace setting r30 to 1 with setting r30 to 0 in !MMU _debug_exception(). Up to microblaze maintainers... [folded a fix from Michal] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2013-02-03 18:16:02 -05:00
..
boot	microblaze: use new common dtc rule	2012-12-03 17:17:50 -06:00
configs	microblaze: Update microblaze defconfigs	2013-01-04 09:52:36 +01:00
include	microblaze: Add finit_module syscall	2013-01-03 14:21:57 +01:00
kernel	microblaze: fix the horror with restarts of sigreturn()	2013-02-03 18:16:02 -05:00
lib	microblaze: lib: Add lib function declarations	2012-12-13 18:15:38 +01:00
mm	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
oprofile	microblaze: Core oprofile configs and hooks	2009-12-14 08:45:07 +01:00
pci	Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze	2013-01-07 07:39:32 -08:00
platform	Fix common misspellings	2011-03-31 11:26:23 -03:00
Kconfig	microblaze: switch to generic sigaltstack	2013-02-03 18:16:01 -05:00
Kconfig.debug	microblaze: remove obsolete DEBUG_BOOTMEM	2011-01-10 09:29:51 +01:00
Makefile	microblaze: use new common dtc rule	2012-12-03 17:17:50 -06:00