AcoSail/kernel_optimize_test
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991114c6fa
kernel_optimize_test/fs
History
Alexander Viro 991114c6fa [PATCH] fix for prune_icache()/forced final iput() races 
Based on analysis and a patch from Russ Weight <rweight@us.ibm.com>

There is a race condition that can occur if an inode is allocated and then
released (using iput) during the ->fill_super functions.  The race
condition is between kswapd and mount.

For most filesystems this can only happen in an error path when kswapd is
running concurrently.  For isofs, however, the error can occur in a more
common code path (which is how the bug was found).

The logic here is "we want final iput() to free inode *now* instead of
letting it sit in cache if fs is going down or had not quite come up".  The
problem is with kswapd seeing such inodes in the middle of being killed and
happily taking over.

The clean solution would be to tell kswapd to leave those inodes alone and
let our final iput deal with them.  I.e.  add a new flag
(I_FORCED_FREEING), set it before write_inode_now() there and make
prune_icache() leave those alone.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-23 09:45:17 -07:00
..
adfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
affs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
afs [PATCH] Exterminate PAGE_BUG 2005-05-01 08:59:01 -07:00
autofs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
autofs4 [PATCH] autofs4: bad lookup fix 2005-06-21 19:07:35 -07:00
befs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cifs [CIFS] Fix cifs update of page cache. Write at correct offset when out of memory 2005-06-09 14:44:07 -07:00
coda [PATCH] class: convert the remaining class_simple users in the kernel to usee the new class api 2005-06-20 15:15:11 -07:00
cramfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
debugfs [PATCH] libfs: add simple attribute files 2005-06-20 15:15:30 -07:00
devfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
devpts Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
efs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
exportfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ext2 [PATCH] ext2 corruption - regression between 2.6.9 and 2.6.10 2005-04-16 15:25:45 -07:00
ext3 [PATCH] Avoid console spam with ext3 aborted journal. 2005-05-18 09:10:02 -07:00
fat Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
freevxfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hfs [PATCH] hfs, hfsplus: don't leak s_fs_info and fix an oops 2005-05-01 08:59:16 -07:00
hfsplus [PATCH] hfs, hfsplus: don't leak s_fs_info and fix an oops 2005-05-01 08:59:16 -07:00
hostfs [PATCH] uml: remove 2_5compat.h 2005-05-28 16:46:11 -07:00
hpfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hppfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hugetlbfs [PATCH] Avoiding mmap fragmentation 2005-06-21 18:46:16 -07:00
isofs [PATCH] isofs: show hidden files, add granularity for assoc/hidden files flags 2005-06-21 19:07:38 -07:00
jbd [PATCH] ext3: fix list scanning in __cleanup_transaction 2005-06-02 15:12:29 -07:00
jffs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
jffs2 [PATCH] make some things static 2005-05-05 16:36:47 -07:00
jfs JFS: Fix compiler warning in jfs_logmgr.c 2005-06-03 14:09:54 -05:00
lockd [PATCH] NLM: fix a client-side race on blocking locks. 2005-06-22 16:07:42 -04:00
minix Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
msdos Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ncpfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nfs [PATCH] NFS: Add debugging code to NFSv4 readdir 2005-06-22 16:07:44 -04:00
nfs_common [PATCH] NFSD: Add server support for NFSv3 ACLs. 2005-06-22 16:07:23 -04:00
nfsd [PATCH] fix nfsacl pointer arithmetic and pg_class initialization bugs 2005-06-22 16:07:27 -04:00
nls [PATCH] make some things static 2005-05-05 16:36:47 -07:00
ntfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
openpromfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
partitions [PATCH] revert msdos partitioning fix 2005-05-06 22:09:27 -07:00
proc [PATCH] mm: add /proc/zoneinfo 2005-06-21 18:46:14 -07:00
qnx4 Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ramfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
reiserfs [PATCH] reiserfs: max_key fix 2005-05-21 16:45:24 -07:00
romfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
smbfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sysfs [PATCH] SYSFS: fix PAGE_SIZE check 2005-06-20 15:15:38 -07:00
sysv Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
udf [PATCH] UDF filesystem: array '__mon_yday' declared as not static 2005-05-31 14:54:18 -07:00
ufs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
umsdos Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vfat Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xfs Merge rsync://oss.sgi.com/git/xfs-2.6 2005-06-21 19:51:18 -07:00
aio.c [PATCH] aio: optimize io_submit_one() 2005-05-01 08:59:16 -07:00
attr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bad_inode.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
binfmt_aout.c [PATCH] Avoiding mmap fragmentation 2005-06-21 18:46:16 -07:00
binfmt_elf_fdpic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_elf.c [PATCH] Avoiding mmap fragmentation 2005-06-21 18:46:16 -07:00
binfmt_em86.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_flat.c [PATCH] binfmt_flat mmap flag fix 2005-06-06 14:57:51 -07:00
binfmt_misc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_script.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_som.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bio.c [PATCH] DocBook: fix some descriptions 2005-05-01 08:59:26 -07:00
block_dev.c [PATCH] remove do_sync parameter from __invalidate_device 2005-05-05 16:36:44 -07:00
buffer.c [PATCH] vm: try_to_free_pages unused argument 2005-06-21 18:46:17 -07:00
char_dev.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
compat_ioctl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compat.c [PATCH] NFS4: Don't use __user with compat_uptr_t 2005-04-27 15:39:03 -07:00
dcache.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
dcookies.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
direct-io.c [PATCH] Direct IO async short read fix 2005-04-16 15:25:50 -07:00
dnotify.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dquot.c [PATCH] quota: fix possible oops on quotaoff 2005-04-16 15:25:46 -07:00
eventpoll.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
exec.c Clean up subthread exec 2005-06-18 13:06:22 -07:00
fcntl.c [PATCH] convert that currently tests _NSIG directly to use valid_signal() 2005-05-01 08:59:14 -07:00
fifo.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
file_table.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
file.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
filesystems.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fs-writeback.c [PATCH] DocBook: fix some descriptions 2005-05-01 08:59:26 -07:00
inode.c [PATCH] fix for prune_icache()/forced final iput() races 2005-06-23 09:45:17 -07:00
ioctl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig [PATCH] NFS: Add support for NFSv3 ACLs 2005-06-22 16:07:24 -04:00
Kconfig.binfmt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
libfs.c [PATCH] libfs: add simple attribute files 2005-06-20 15:15:30 -07:00
locks.c [PATCH] VFS: Ensure that all the on-stack struct file_lock call fl_release_private 2005-06-22 16:07:40 -04:00
Makefile [PATCH] NFSD: Add server support for NFSv3 ACLs. 2005-06-22 16:07:23 -04:00
mbcache.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
mpage.c [PATCH] mpage_end_io_write() I/O error handling fix 2005-06-04 17:12:59 -07:00
namei.c [PATCH] namei fixes (19/19) 2005-06-06 14:42:27 -07:00
namespace.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nfsctl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
open.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pipe.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
posix_acl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
quota_v1.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
quota_v2.c [PATCH] quota: possible bug in quota format v2 support 2005-04-16 15:25:47 -07:00
quota.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
read_write.c [PATCH] undo do_readv_writev() behavior change 2005-04-16 15:25:49 -07:00
readdir.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
select.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
seq_file.c [PATCH] DocBook: fix some descriptions 2005-05-01 08:59:26 -07:00
stat.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
super.c [PATCH] VFS: memory leak in do_kern_mount() 2005-06-21 18:46:22 -07:00
xattr_acl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xattr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00