Chris Mason 7b1a14bbb0 Btrfs: fix acl caching ... Linus noticed the btrfs code to cache acls wasn't properly caching a NULL acl when the inode didn't have any acls. This meant the common case of no acls resulted in expensive btree searches every time the kernel checked permissions (which is quite often). This is a modified version of Linus' original patch: Properly set initial acl fields to BTRFS_ACL_NOT_CACHED in the inode. This forces an acl lookup when permission checks are done. Fix btrfs_get_acl to avoid lookups and locking when the inode acls fields are set to null. Fix btrfs_get_acl to use the right return value from __btrfs_getxattr when deciding to cache a NULL acl. It was storing a NULL acl when __btrfs_getxattr return -ENOENT, but __btrfs_getxattr was actually returning -ENODATA for this case. Signed-off-by: Chris Mason <chris.mason@oracle.com>		2009-04-27 13:18:26 -04:00
..
acl.c	Btrfs: fix acl caching	2009-04-27 13:18:26 -04:00
async-thread.c	Btrfs: add a priority queue to the async thread helpers	2009-04-20 15:53:08 -04:00
async-thread.h	Btrfs: add a priority queue to the async thread helpers	2009-04-20 15:53:08 -04:00
btrfs_inode.h	Btrfs: add extra flushing for renames and truncates	2009-03-31 14:27:58 -04:00
compat.h	Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code	2009-01-06 09:38:55 -05:00
compression.c	Btrfs: removed unused #include <version.h>'s	2009-01-21 10:49:16 -05:00
compression.h	Btrfs: Add zlib compression support	2008-10-29 14:49:59 -04:00
crc32c.h	Btrfs: Drop the hardware crc32c asm code	2009-01-07 19:56:59 -05:00
ctree.c	Btrfs: use the right node in reada_for_balance	2009-04-20 15:53:09 -04:00
ctree.h	Btrfs: fix fallocate deadlock on inode extent lock	2009-04-24 15:46:05 -04:00
delayed-ref.c	Btrfs: remove unused ftrace include	2009-04-02 17:02:55 -04:00
delayed-ref.h	Btrfs: make sure btrfs_update_delayed_ref doesn't increase ref_mod	2009-03-25 09:55:11 -04:00
dir-item.c	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
disk-io.c	Btrfs: Fix a bunch of printk() warnings.	2009-04-27 08:37:49 -04:00
disk-io.h	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
export.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
export.h	NFS support for btrfs - v3	2008-09-25 11:04:06 -04:00
extent-tree.c	Btrfs: Fix a bunch of printk() warnings.	2009-04-27 08:37:49 -04:00
extent_io.c	Btrfs: remove #if 0 code	2009-04-27 07:40:52 -04:00
extent_io.h	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
extent_map.c	Btrfs: kill btrfs_cache_create	2009-04-24 15:46:04 -04:00
extent_map.h	Btrfs: Fix csum error for compressed data	2008-11-10 07:34:43 -05:00
file-item.c	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
file.c	Btrfs: remove #if 0 code	2009-04-27 07:40:52 -04:00
free-space-cache.c	Btrfs: Fix a bunch of printk() warnings.	2009-04-27 08:37:49 -04:00
free-space-cache.h	Btrfs: rework allocation clustering	2009-04-03 09:47:43 -04:00
hash.h	Switch btrfs_name_hash() to crc32c	2008-09-25 11:04:06 -04:00
inode-item.c	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
inode-map.c	Btrfs: Fix a trivial warning using max() of u64 vs ULL.	2009-04-27 08:37:49 -04:00
inode.c	Btrfs: fix acl caching	2009-04-27 13:18:26 -04:00
ioctl.c	Btrfs: Fix a bunch of printk() warnings.	2009-04-27 08:37:49 -04:00
ioctl.h	Btrfs: fix ioctl arg size (userland incompatible change!)	2009-01-16 11:59:08 -05:00
Kconfig	Btrfs: make btrfs acls selectable	2009-02-04 09:28:28 -05:00
locking.c	Btrfs: fix typos in comments	2009-04-02 16:46:06 -04:00
locking.h	Btrfs: fix spinlock assertions on UP systems	2009-03-09 11:45:38 -04:00
Makefile	Btrfs: simplify makefile	2009-04-24 15:46:03 -04:00
ordered-data.c	Btrfs: use WRITE_SYNC for synchronous writes	2009-04-20 15:53:08 -04:00
ordered-data.h	Btrfs: add extra flushing for renames and truncates	2009-03-31 14:27:58 -04:00
orphan.c	Btrfs: Create orphan inode records to prevent lost files after a crash	2008-09-25 11:04:05 -04:00
print-tree.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
print-tree.h	Btrfs: Create extent_buffer interface for large blocksizes	2008-09-25 11:03:56 -04:00
ref-cache.c	Btrfs: Make btrfs_drop_snapshot work in larger and more efficient chunks	2009-02-04 09:27:02 -05:00
ref-cache.h	Btrfs: Make btrfs_drop_snapshot work in larger and more efficient chunks	2009-02-04 09:27:02 -05:00
root-tree.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
struct-funcs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
super.c	Btrfs: Fix a bunch of printk() warnings.	2009-04-27 08:37:49 -04:00
sysfs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
transaction.c	Btrfs: fix deadlocks and stalls on dead root removal	2009-04-24 15:46:05 -04:00
transaction.h	Btrfs: reduce stalls during transaction commit	2009-03-24 16:14:26 -04:00
tree-defrag.c	Btrfs: do extent allocation and reference count updates in the background	2009-03-24 16:14:25 -04:00
tree-log.c	Btrfs: fix fallocate deadlock on inode extent lock	2009-04-24 15:46:05 -04:00
tree-log.h	Btrfs: tree logging unlink/rename fixes	2009-03-24 16:14:52 -04:00
version.h	Update Btrfs files for in-kernel usage	2008-09-25 15:41:59 -04:00
version.sh	Btrfs: Fixes for 2.6.28-rc API changes	2008-11-19 21:17:22 -05:00
volumes.c	Btrfs: When shrinking, only update disk size on success	2009-04-27 07:40:51 -04:00
volumes.h	Btrfs: When shrinking, only update disk size on success	2009-04-27 07:40:51 -04:00
xattr.c	Btrfs: selinux support	2009-02-04 09:29:13 -05:00
xattr.h	Btrfs: selinux support	2009-02-04 09:29:13 -05:00
zlib.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00