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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>		17 years ago
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Makefile	eCryptfs: Privileged kthread for lower file opens	17 years ago
crypto.c	eCryptfs: use page_alloc not kmalloc to get a page of memory	17 years ago
debug.c	eCryptfs: update comment and debug statement	18 years ago
dentry.c	eCryptfs: Swap dput() and mntput()	17 years ago
ecryptfs_kernel.h	eCryptfs: Make all persistent file opens delayed	17 years ago
file.c	eCryptfs: Make all persistent file opens delayed	17 years ago
inode.c	[PATCH] kill nameidata passing to permission(), rename to inode_permission()	17 years ago
keystore.c	ecryptfs: propagate key errors up at mount time	17 years ago
kthread.c	eCryptfs: Privileged kthread for lower file opens	17 years ago
main.c	SL*B: drop kmem cache argument from constructor	17 years ago
messaging.c	eCryptfs: make key module subsystem respect namespaces	17 years ago
miscdev.c	ecryptfs: discard ecryptfsd registration messages in miscdev	17 years ago
mmap.c	ecryptfs: inode.c mmap.c use unaligned byteorder helpers	17 years ago
netlink.c	eCryptfs: make key module subsystem respect namespaces	17 years ago
read_write.c	eCryptfs: remove unnecessary page decrypt call	17 years ago
super.c	ecryptfs: remove debug as mount option, and warn if set via modprobe	17 years ago