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Eric Sandeen 7fcba05437 eCryptfs: use page_alloc not kmalloc to get a page of memory 
With SLUB debugging turned on in 2.6.26, I was getting memory corruption
when testing eCryptfs.  The root cause turned out to be that eCryptfs was
doing kmalloc(PAGE_CACHE_SIZE); virt_to_page() and treating that as a nice
page-aligned chunk of memory.  But at least with SLUB debugging on, this
is not always true, and the page we get from virt_to_page does not
necessarily match the PAGE_CACHE_SIZE worth of memory we got from kmalloc.

My simple testcase was 2 loops doing "rm -f fileX; cp /tmp/fileX ." for 2
different multi-megabyte files.  With this change I no longer see the
corruption.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Acked-by: Michael Halcrow <mhalcrow@us.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: <stable@kernel.org>		[2.6.25.x, 2.6.26.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-28 16:30:21 -07:00
..
9p
9p: fix O_APPEND in legacy mode
2008-07-03 09:59:03 -05:00
adfs
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
affs
[PATCH] f_count may wrap around
2008-07-26 20:53:40 -04:00
afs
[PATCH] sanitize ->permission() prototype
2008-07-26 20:53:14 -04:00
autofs
…
autofs4
autofs4: remove unused ioctls
2008-07-24 10:47:33 -07:00
befs
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
bfs
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
cifs
[PATCH] sanitize ->permission() prototype
2008-07-26 20:53:14 -04:00
coda
[PATCH] sanitize __user_walk_fd() et.al.
2008-07-26 20:53:34 -04:00
configfs
configfs: Allow ->make_item() and ->make_group() to return detailed errors.
2008-07-17 15:21:29 -07:00
cramfs
fs: Remove unnecessary inclusions of asm/semaphore.h
2008-04-18 22:16:44 -04:00
debugfs
debugfs: Implement debugfs_remove_recursive()
2008-07-21 21:54:59 -07:00
devpts
devpts: factor out PTY index allocation
2008-04-30 08:29:48 -07:00
dlm
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
2008-07-28 09:46:00 -07:00
ecryptfs
eCryptfs: use page_alloc not kmalloc to get a page of memory
2008-07-28 16:30:21 -07:00
efs
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
exportfs
fs: replace remaining __FUNCTION__ occurrences
2008-04-30 08:29:54 -07:00
ext2
vfs: pagecache usage optimization for pagesize!=blocksize
2008-07-28 16:30:21 -07:00
ext3
vfs: pagecache usage optimization for pagesize!=blocksize
2008-07-28 16:30:21 -07:00
ext4
vfs: pagecache usage optimization for pagesize!=blocksize
2008-07-28 16:30:21 -07:00
fat
[patch 3/4] fat: dont call notify_change
2008-07-26 20:53:27 -04:00
freevxfs
fs/freevxfs/: proper externs
2008-04-29 08:06:00 -07:00
fuse
[PATCH] fix MAY_CHDIR/MAY_ACCESS/LOOKUP_ACCESS mess
2008-07-26 20:53:21 -04:00
gfs2
[PATCH] don't pass nameidata to gfs2_lookupi()
2008-07-26 20:53:36 -04:00
hfs
[PATCH] f_count may wrap around
2008-07-26 20:53:40 -04:00
hfsplus
[PATCH] f_count may wrap around
2008-07-26 20:53:40 -04:00
hostfs
[PATCH] sanitize ->permission() prototype
2008-07-26 20:53:14 -04:00
hpfs
[patch 05/14] hpfs: dont call permission()
2008-07-26 20:53:13 -04:00
hppfs
[patch] hppfs: remove hppfs_permission
2008-07-26 20:53:07 -04:00
hugetlbfs
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
isofs
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
jbd
jbd: don't abort if flushing file data failed
2008-07-25 10:53:32 -07:00
jbd2
ext4: Add ordered mode support for delalloc
2008-07-11 19:27:31 -04:00
jffs2
Merge git://git.infradead.org/mtd-2.6
2008-07-26 20:30:56 -07:00
jfs
[PATCH] sanitize ->permission() prototype
2008-07-26 20:53:14 -04:00
lockd
locks: add special return value for asynchronous locks
2008-07-25 10:53:47 -07:00
minix
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
msdos
fatfs: add UTC timestamp option
2008-07-25 10:53:34 -07:00
ncpfs
[PATCH] don't pass nameidata to __ncp_lookup_validate()
2008-07-26 20:53:37 -04:00
nfs
NFS: Ensure we call nfs_sb_deactive() after releasing the directory inode
2008-07-27 18:20:51 -04:00
nfs_common
…
nfsd
[PATCH] get rid of indirect users of namei.h
2008-07-26 20:53:42 -04:00
nls
…
ntfs
[patch 3/5] vfs: change remove_suid() to file_remove_suid()
2008-07-26 20:53:16 -04:00
ocfs2
[PATCH] sanitize ->permission() prototype
2008-07-26 20:53:14 -04:00
omfs
omfs: update kbuild to include OMFS
2008-07-26 12:00:05 -07:00
openpromfs
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
partitions
fs/partitions/efi: convert to pr_debug
2008-07-25 10:53:44 -07:00
proc
task IO accounting: move all IO statistics in struct task_io_accounting
2008-07-27 16:12:28 -07:00
qnx4
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
ramfs
ramfs: enable splice write
2008-07-04 09:52:14 +02:00
reiserfs
[PATCH] sanitize ->permission() prototype
2008-07-26 20:53:14 -04:00
romfs
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
smbfs
[PATCH] sanitize ->permission() prototype
2008-07-26 20:53:14 -04:00
sysfs
Use WARN() in fs/sysfs
2008-07-26 12:00:07 -07:00
sysv
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
ubifs
[PATCH] get rid of indirect users of namei.h
2008-07-26 20:53:42 -04:00
udf
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
ufs
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
vfat
fatfs: add UTC timestamp option
2008-07-25 10:53:34 -07:00
xfs
[PATCH] sanitize __user_walk_fd() et.al.
2008-07-26 20:53:34 -04:00
aio.c
[PATCH] f_count may wrap around
2008-07-26 20:53:40 -04:00
anon_inodes.c
flag parameters: NONBLOCK in anon_inode_getfd
2008-07-24 10:47:28 -07:00
attr.c
[patch 4/4] vfs: immutable inode checking cleanup
2008-07-26 20:53:28 -04:00
bad_inode.c
[PATCH] sanitize ->permission() prototype
2008-07-26 20:53:14 -04:00
binfmt_aout.c
tracehook: exec
2008-07-26 12:00:08 -07:00
binfmt_elf_fdpic.c
binfmt_elf_fdpic: Magical stack pointer index, for NEW_AUX_ENT compat.
2008-07-28 18:10:28 +09:00
binfmt_elf.c
tracehook: exec
2008-07-26 12:00:08 -07:00
binfmt_em86.c
binfmt_misc.c: avoid potential kernel stack overflow
2008-04-29 08:06:04 -07:00
binfmt_flat.c
tracehook: exec
2008-07-26 12:00:08 -07:00
binfmt_misc.c
binfmt_misc: use simple_read_from_buffer()
2008-07-24 10:47:27 -07:00
binfmt_script.c
binfmt_misc.c: avoid potential kernel stack overflow
2008-04-29 08:06:04 -07:00
binfmt_som.c
tracehook: exec
2008-07-26 12:00:08 -07:00
bio-integrity.c
bio-integrity: remove EXPORT_SYMBOL for bio_integrity_init_slab()
2008-07-28 16:30:21 -07:00
bio.c
dio: use get_user_pages_fast
2008-07-26 12:00:06 -07:00
block_dev.c
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
buffer.c
vfs: pagecache usage optimization for pagesize!=blocksize
2008-07-28 16:30:21 -07:00
char_dev.c
Remove the lock_kernel() call from chrdev_open()
2008-06-20 14:05:53 -06:00
compat_binfmt_elf.c
…
compat_ioctl.c
remove unused #include <linux/dirent.h>'s
2008-07-25 10:53:34 -07:00
compat.c
[PATCH] sanitize __user_walk_fd() et.al.
2008-07-26 20:53:34 -04:00
dcache.c
vfs: add cond_resched_lock while scanning dentry LRU lists
2008-07-26 12:00:02 -07:00
dcookies.c
…
direct-io.c
dio: use get_user_pages_fast
2008-07-26 12:00:06 -07:00
dnotify.c
[PATCH] split linux/file.h
2008-05-01 13:08:16 -04:00
dquot.c
quota: implement sending information via netlink about user below quota
2008-07-25 10:53:35 -07:00
drop_caches.c
vfs: skip inodes without pages to free in drop_pagecache_sb()
2008-04-29 08:06:05 -07:00
eventfd.c
flag parameters: check magic constants
2008-07-24 10:47:29 -07:00
eventpoll.c
flag parameters add-on: remove epoll_create size param
2008-07-24 10:47:29 -07:00
exec.c
exec: include pagemap.h again to fix build
2008-07-28 16:30:20 -07:00
fcntl.c
[PATCH] fix RLIM_NOFILE handling
2008-07-26 20:53:45 -04:00
fifo.c
[PATCH] reuse xxx_fifo_fops for xxx_pipe_fops
2008-07-26 20:53:06 -04:00
file_table.c
[PATCH] f_count may wrap around
2008-07-26 20:53:40 -04:00
file.c
[PATCH] fix RLIM_NOFILE handling
2008-07-26 20:53:45 -04:00
filesystems.c
…
fs-writeback.c
VFS: export sync_sb_inodes
2008-07-14 19:10:52 +03:00
generic_acl.c
…
inode.c
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
inotify_user.c
[PATCH] sanitize __user_walk_fd() et.al.
2008-07-26 20:53:34 -04:00
inotify.c
…
internal.h
[PATCH] move a bunch of declarations to fs/internal.h
2008-04-21 23:11:01 -04:00
ioctl.c
make vfs_ioctl() static
2008-04-29 08:06:00 -07:00
ioprio.c
…
Kconfig
omfs: update kbuild to include OMFS
2008-07-26 12:00:05 -07:00
Kconfig.binfmt
sh: Initial ELF FDPIC support.
2008-07-28 18:10:28 +09:00
libfs.c
add kernel-doc for simple_read_from_buffer and memory_read_from_buffer
2008-07-04 10:40:07 -07:00
locks.c
SL*B: drop kmem cache argument from constructor
2008-07-26 12:00:07 -07:00
Makefile
omfs: update kbuild to include OMFS
2008-07-26 12:00:05 -07:00
mbcache.c
vfs: fix possible deadlock in ext2, ext3, ext4 when using xattrs
2008-04-15 19:35:41 -07:00
mpage.c
vfs: add hooks for ext4's delayed allocation support
2008-07-11 19:27:31 -04:00
namei.c
[PATCH] get rid of __user_path_lookup_open
2008-07-26 20:53:41 -04:00
namespace.c
[PATCH] sanitize __user_walk_fd() et.al.
2008-07-26 20:53:34 -04:00
nfsctl.c
…
no-block.c
…
open.c
[PATCH] fix RLIM_NOFILE handling
2008-07-26 20:53:45 -04:00
pipe.c
[PATCH] reuse xxx_fifo_fops for xxx_pipe_fops
2008-07-26 20:53:06 -04:00
pnode.c
[patch 7/7] vfs: mountinfo: show dominating group id
2008-04-23 00:05:09 -04:00
pnode.h
[patch 7/7] vfs: mountinfo: show dominating group id
2008-04-23 00:05:09 -04:00
posix_acl.c
…
quota_v1.c
quota: move function-macros from quota.h to quotaops.h
2008-07-25 10:53:35 -07:00
quota_v2.c
quota: move function-macros from quota.h to quotaops.h
2008-07-25 10:53:35 -07:00
quota.c
quota: cleanup loop in sync_dquots()
2008-07-25 10:53:35 -07:00
read_write.c
Remove BKL from remote_llseek v2
2008-07-02 15:06:27 -06:00
read_write.h
…
readdir.c
…
select.c
Fix performance regression on lmbench select benchmark
2008-06-22 12:23:15 -07:00
seq_file.c
[patch 2/7] vfs: mountinfo: add seq_file_root()
2008-04-23 00:04:38 -04:00
signalfd.c
flag parameters: check magic constants
2008-07-24 10:47:29 -07:00
splice.c
[patch 3/5] vfs: change remove_suid() to file_remove_suid()
2008-07-26 20:53:16 -04:00
stack.c
…
stat.c
[PATCH] sanitize __user_walk_fd() et.al.
2008-07-26 20:53:34 -04:00
super.c
fix soft lock up at NFS mount via per-SB LRU-list of unused dentries
2008-07-24 10:47:15 -07:00
sync.c
SYNC_FILE_RANGE_WRITE may and will block. Document that.
2008-07-24 10:47:17 -07:00
timerfd.c
flag parameters: check magic constants
2008-07-24 10:47:29 -07:00
utimes.c
[PATCH] sanitize __user_walk_fd() et.al.
2008-07-26 20:53:34 -04:00
xattr_acl.c
…
xattr.c
[PATCH] sanitize __user_walk_fd() et.al.
2008-07-26 20:53:34 -04:00