Josef Bacik d5e2003c2b Btrfs: detect wether a device supports discard ... We have a problem where if a user specifies discard but doesn't actually support it we will return EOPNOTSUPP from btrfs_discard_extent. This is a problem because this gets called (in a fashion) from the tree log recovery code, which has a nice little BUG_ON(ret) after it, which causes us to fail the tree log replay. So instead detect wether our devices support discard when we're adding them and then don't issue discards if we know that the device doesn't support it. And just for good measure set ret = 0 in btrfs_issue_discard just in case we still get EOPNOTSUPP so we don't screw anybody up like this again. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>		2011-08-16 21:09:15 -04:00
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Kconfig	…
Makefile	Btrfs: make acl functions really no-op if acl is not enabled	2011-08-01 14:30:48 -04:00
acl.c	Btrfs: make acl functions really no-op if acl is not enabled	2011-08-01 14:30:48 -04:00
async-thread.c	…
async-thread.h	…
btrfs_inode.h	Btrfs: use the commit_root for reading free_space_inode crcs	2011-07-27 12:46:48 -04:00
compat.h	…
compression.c	Btrfs: check the nodatasum flag when writing compressed files	2011-08-01 14:30:46 -04:00
compression.h	…
ctree.c	Btrfs: remove lockdep magic from btrfs_next_leaf	2011-07-27 12:46:47 -04:00
ctree.h	Btrfs: make acl functions really no-op if acl is not enabled	2011-08-01 14:30:48 -04:00
delayed-inode.c	Btrfs: switch the btrfs tree locks to reader/writer	2011-07-27 12:46:46 -04:00
delayed-inode.h	btrfs: fix inconsonant inode information	2011-06-27 11:34:27 -04:00
delayed-ref.c	…
delayed-ref.h	…
dir-item.c	Btrfs: remove redundant code for dir item lookup	2011-08-01 14:30:48 -04:00
disk-io.c	Btrfs: make a lockdep class for each root	2011-07-27 12:46:46 -04:00
disk-io.h	Btrfs: make a lockdep class for each root	2011-07-27 12:46:46 -04:00
export.c	…
export.h	…
extent-tree.c	Btrfs: detect wether a device supports discard	2011-08-16 21:09:15 -04:00
extent_io.c	Btrfs: don't call writepages from within write_full_page	2011-08-01 14:37:36 -04:00
extent_io.h	Btrfs: remove unused members from struct extent_state	2011-08-01 14:30:50 -04:00
extent_map.c	Btrfs: clean up code for merging extent maps	2011-08-01 14:30:50 -04:00
extent_map.h	…
file-item.c	Merge branch 'alloc_path' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/btrfs-error-handling into for-linus	2011-08-01 14:27:34 -04:00
file.c	Btrfs: Remove unused variable 'last_index' in file.c	2011-08-01 14:32:39 -04:00
free-space-cache.c	Btrfs: use find_or_create_page instead of grab_cache_page	2011-07-27 12:46:43 -04:00
free-space-cache.h	…
hash.h	…
inode-item.c	…
inode-map.c	btrfs: add helper for fs_info->closing	2011-06-04 08:11:22 -04:00
inode-map.h	…
inode.c	btrfs: Make extent-io callbacks that never fail return void	2011-08-01 14:30:43 -04:00
ioctl.c	Btrfs: copy string correctly in INO_LOOKUP ioctl	2011-08-01 14:30:45 -04:00
ioctl.h	…
locking.c	Btrfs: switch the btrfs tree locks to reader/writer	2011-07-27 12:46:46 -04:00
locking.h	Btrfs: switch the btrfs tree locks to reader/writer	2011-07-27 12:46:46 -04:00
lzo.c	…
ordered-data.c	…
ordered-data.h	…
orphan.c	…
print-tree.c	…
print-tree.h	…
relocation.c	Merge branch 'integration' into for-linus	2011-07-27 16:18:13 -04:00
root-tree.c	btrfs: make btrfs_set_root_node void	2011-08-01 14:30:44 -04:00
scrub.c	btrfs: remove unneeded includes from scrub.c	2011-06-10 14:59:52 +02:00
struct-funcs.c	Btrfs: stop using highmem for extent_buffers	2011-07-27 12:46:45 -04:00
super.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2011-07-08 23:25:45 -07:00
sysfs.c	btrfs: Remove unused sysfs code	2011-06-17 14:54:18 -04:00
transaction.c	Btrfs: remove a BUG_ON() in btrfs_commit_transaction()	2011-08-01 14:30:47 -04:00
transaction.h	…
tree-defrag.c	…
tree-log.c	Merge branch 'alloc_path' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/btrfs-error-handling into for-linus	2011-08-01 14:27:34 -04:00
tree-log.h	…
version.h	…
volumes.c	Btrfs: detect wether a device supports discard	2011-08-16 21:09:15 -04:00
volumes.h	Btrfs: detect wether a device supports discard	2011-08-16 21:09:15 -04:00
xattr.c	Btrfs: try to only do one btrfs_search_slot in do_setxattr	2011-07-11 09:58:45 -04:00
xattr.h	…
zlib.c	…