Revision 9aea5a65aa7a1af9a4236dfaeb0088f1624f9919 authored by Roland McGrath on 08 September 2010, 02:37:06 UTC, committed by Linus Torvalds on 10 September 2010, 15:10:26 UTC
An execve with a very large total of argument/environment strings can take a really long time in the execve system call. It runs uninterruptibly to count and copy all the strings. This change makes it abort the exec quickly if sent a SIGKILL. Note that this is the conservative change, to interrupt only for SIGKILL, by using fatal_signal_pending(). It would be perfectly correct semantics to let any signal interrupt the string-copying in execve, i.e. use signal_pending() instead of fatal_signal_pending(). We'll save that change for later, since it could have user-visible consequences, such as having a timer set too quickly make it so that an execve can never complete, though it always happened to work before. Signed-off-by: Roland McGrath <roland@redhat.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 497 bytes |
| Makefile | -rw-r--r-- | 343 bytes |
| ast.c | -rw-r--r-- | 4.7 KB |
| ast.h | -rw-r--r-- | 874 bytes |
| config.c | -rw-r--r-- | 25.3 KB |
| config.h | -rw-r--r-- | 1.5 KB |
| debug_fs.c | -rw-r--r-- | 16.3 KB |
| dir.c | -rw-r--r-- | 10.0 KB |
| dir.h | -rw-r--r-- | 1.2 KB |
| dlm_internal.h | -rw-r--r-- | 16.5 KB |
| lock.c | -rw-r--r-- | 120.7 KB |
| lock.h | -rw-r--r-- | 2.5 KB |
| lockspace.c | -rw-r--r-- | 18.6 KB |
| lockspace.h | -rw-r--r-- | 1.0 KB |
| lowcomms.c | -rw-r--r-- | 37.2 KB |
| lowcomms.h | -rw-r--r-- | 1014 bytes |
| lvb_table.h | -rw-r--r-- | 687 bytes |
| main.c | -rw-r--r-- | 2.0 KB |
| member.c | -rw-r--r-- | 9.0 KB |
| member.h | -rw-r--r-- | 1.0 KB |
| memory.c | -rw-r--r-- | 2.0 KB |
| memory.h | -rw-r--r-- | 1.0 KB |
| midcomms.c | -rw-r--r-- | 3.7 KB |
| midcomms.h | -rw-r--r-- | 864 bytes |
| netlink.c | -rw-r--r-- | 2.9 KB |
| plock.c | -rw-r--r-- | 9.8 KB |
| rcom.c | -rw-r--r-- | 13.0 KB |
| rcom.h | -rw-r--r-- | 1.1 KB |
| recover.c | -rw-r--r-- | 18.9 KB |
| recover.h | -rw-r--r-- | 1.5 KB |
| recoverd.c | -rw-r--r-- | 7.3 KB |
| recoverd.h | -rw-r--r-- | 970 bytes |
| requestqueue.c | -rw-r--r-- | 5.3 KB |
| requestqueue.h | -rw-r--r-- | 882 bytes |
| user.c | -rw-r--r-- | 25.6 KB |
| user.h | -rw-r--r-- | 514 bytes |
| util.c | -rw-r--r-- | 4.5 KB |
| util.h | -rw-r--r-- | 805 bytes |
Computing file changes ...
