Revision bbdb396a60b2ebf7de3b717991e5d3e28c8b7bbd authored by Martin Bligh on 28 October 2006, 17:38:25 UTC, committed by Linus Torvalds on 28 October 2006, 18:30:51 UTC
If try_to_free_pages / balance_pgdat are called with a gfp_mask specifying GFP_IO and/or GFP_FS, they will reclaim the requisite number of pages, and the reset prev_priority to DEF_PRIORITY (or to some other high (ie: unurgent) value). However, another reclaimer without those gfp_mask flags set (say, GFP_NOIO) may still be struggling to reclaim pages. The concurrent overwrite of zone->prev_priority will cause this GFP_NOIO thread to unexpectedly cease deactivating mapped pages, thus causing reclaim difficulties. Fix this is to key the distress calculation not off zone->prev_priority, but also take into account the local caller's priority by using min(zone->prev_priority, sc->priority) Signed-off-by: Martin J. Bligh <mbligh@google.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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| File | Mode | Size |
|---|---|---|
| basic | ||
| genksyms | ||
| kconfig | ||
| ksymoops | ||
| mod | ||
| package | ||
| rt-tester | ||
| .gitignore | -rw-r--r-- | 67 bytes |
| Kbuild.include | -rw-r--r-- | 8.2 KB |
| Lindent | -rwxr-xr-x | 60 bytes |
| Makefile | -rw-r--r-- | 893 bytes |
| Makefile.build | -rw-r--r-- | 10.4 KB |
| Makefile.clean | -rw-r--r-- | 3.2 KB |
| Makefile.headersinst | -rw-r--r-- | 6.8 KB |
| Makefile.host | -rw-r--r-- | 6.4 KB |
| Makefile.lib | -rw-r--r-- | 6.4 KB |
| Makefile.modinst | -rw-r--r-- | 1.0 KB |
| Makefile.modpost | -rw-r--r-- | 4.3 KB |
| bin2c.c | -rw-r--r-- | 702 bytes |
| binoffset.c | -rw-r--r-- | 3.9 KB |
| bloat-o-meter | -rwxr-xr-x | 1.6 KB |
| checkincludes.pl | -rwxr-xr-x | 529 bytes |
| checkstack.pl | -rwxr-xr-x | 3.8 KB |
| checkversion.pl | -rwxr-xr-x | 1.8 KB |
| conmakehash.c | -rw-r--r-- | 6.0 KB |
| export_report.pl | -rw-r--r-- | 4.2 KB |
| extract-ikconfig | -rwxr-xr-x | 1.7 KB |
| gcc-version.sh | -rw-r--r-- | 338 bytes |
| gcc-x86_64-has-stack-protector.sh | -rw-r--r-- | 187 bytes |
| gen_initramfs_list.sh | -rw-r--r-- | 6.4 KB |
| hdrcheck.sh | -rwxr-xr-x | 281 bytes |
| kallsyms.c | -rw-r--r-- | 12.0 KB |
| kernel-doc | -rwxr-xr-x | 51.2 KB |
| makelst | -rwxr-xr-x | 941 bytes |
| mkcompile_h | -rwxr-xr-x | 2.3 KB |
| mkmakefile | -rw-r--r-- | 742 bytes |
| mksysmap | -rw-r--r-- | 1.3 KB |
| mkuboot.sh | -rwxr-xr-x | 293 bytes |
| mkversion | -rw-r--r-- | 74 bytes |
| namespace.pl | -rwxr-xr-x | 13.1 KB |
| patch-kernel | -rwxr-xr-x | 9.7 KB |
| pnmtologo.c | -rw-r--r-- | 11.7 KB |
| profile2linkerlist.pl | -rw-r--r-- | 378 bytes |
| setlocalversion | -rw-r--r-- | 527 bytes |
| show_delta | -rwxr-xr-x | 3.0 KB |
| unifdef.c | -rw-r--r-- | 29.0 KB |
| ver_linux | -rwxr-xr-x | 3.1 KB |
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