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 |
|---|---|---|
| c2port | ||
| cb710 | ||
| eeprom | ||
| ibmasm | ||
| iwmc3200top | ||
| sgi-gru | ||
| sgi-xp | ||
| Kconfig | -rw-r--r-- | 13.6 KB |
| Makefile | -rw-r--r-- | 1.3 KB |
| ad525x_dpot-i2c.c | -rw-r--r-- | 2.9 KB |
| ad525x_dpot-spi.c | -rw-r--r-- | 3.8 KB |
| ad525x_dpot.c | -rw-r--r-- | 18.0 KB |
| ad525x_dpot.h | -rw-r--r-- | 7.3 KB |
| arm-charlcd.c | -rw-r--r-- | 9.3 KB |
| atmel-ssc.c | -rw-r--r-- | 3.5 KB |
| atmel_pwm.c | -rw-r--r-- | 9.2 KB |
| atmel_tclib.c | -rw-r--r-- | 3.6 KB |
| bh1780gli.c | -rw-r--r-- | 6.1 KB |
| bmp085.c | -rw-r--r-- | 12.8 KB |
| cs5535-mfgpt.c | -rw-r--r-- | 10.1 KB |
| ds1682.c | -rw-r--r-- | 7.0 KB |
| enclosure.c | -rw-r--r-- | 15.5 KB |
| ep93xx_pwm.c | -rw-r--r-- | 9.5 KB |
| hmc6352.c | -rw-r--r-- | 4.2 KB |
| hpilo.c | -rw-r--r-- | 20.8 KB |
| hpilo.h | -rw-r--r-- | 5.6 KB |
| ics932s401.c | -rw-r--r-- | 13.4 KB |
| ioc4.c | -rw-r--r-- | 14.6 KB |
| isl29003.c | -rw-r--r-- | 11.6 KB |
| kgdbts.c | -rw-r--r-- | 28.9 KB |
| lkdtm.c | -rw-r--r-- | 14.8 KB |
| phantom.c | -rw-r--r-- | 13.1 KB |
| ti_dac7512.c | -rw-r--r-- | 2.5 KB |
| tifm_7xx1.c | -rw-r--r-- | 11.1 KB |
| tifm_core.c | -rw-r--r-- | 8.2 KB |
| tsl2550.c | -rw-r--r-- | 10.7 KB |
| vmware_balloon.c | -rw-r--r-- | 21.0 KB |
Computing file changes ...
