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Lukas Czerner be715140b5 xfs: check if device support discard in xfs_ioc_trim() 
Right now we, are relying on the fact that when we attempt to
actually do the discard, blkdev_issue_discar() returns -EOPNOTSUPP
and the user is informed that the device does not support discard.

However, in the case where the we do not hit any suitable free
extent to trim in FITRIM code, it will finish without any error.
This is very confusing, because it seems that FITRIM was successful
even though the device does not actually supports discard.

Solution: Check for the discard support before attempt to search for
free extents.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
2011-02-22 15:08:44 -06:00
..
linux-2.6
xfs: check if device support discard in xfs_ioc_trim()
2011-02-22 15:08:44 -06:00
quota
xfs: fix dquot shaker deadlock
2011-01-28 09:05:36 -06:00
support
xfs: Do not name variables "panic"
2011-01-17 12:39:07 -08:00
Kconfig
quota: Make QUOTACTL config be selected by its users
2010-10-05 12:16:37 +02:00
Makefile
xfs: add FITRIM support
2011-01-11 20:28:29 -06:00
xfs_acl.h
fs: provide rcu-walk aware permission i_ops
2011-01-07 17:50:29 +11:00
xfs_ag.h
xfs: convert pag_ici_lock to a spin lock
2010-12-16 17:08:41 +11:00
xfs_alloc_btree.c
xfs: remove the ->kill_root btree operation
2010-10-18 15:07:38 -05:00
xfs_alloc_btree.h
…
xfs_alloc.c
xfs: add FITRIM support
2011-01-11 20:28:29 -06:00
xfs_alloc.h
xfs: limit extent length for allocation to AG size
2011-01-28 09:05:35 -06:00
xfs_arch.h
…
xfs_attr_leaf.c
xfs: use KM_NOFS for allocations during attribute list operations
2010-12-23 11:57:37 +11:00
xfs_attr_leaf.h
…
xfs_attr_sf.h
xfs: convert attr to use unsigned names
2010-01-20 10:47:48 +11:00
xfs_attr.c
xfs: remove xfs_buf wrappers
2010-10-18 15:08:07 -05:00
xfs_attr.h
xfs: convert attr to use unsigned names
2010-01-20 10:47:48 +11:00
xfs_bit.c
…
xfs_bit.h
…
xfs_bmap_btree.c
xfs: remove unneeded #include statements
2010-07-26 13:16:33 -05:00
xfs_bmap_btree.h
xfs: make several more functions static
2010-01-15 15:31:38 -06:00
xfs_bmap.c
xfs: xfs_bmap_add_extent_delay_real should init br_startblock
2011-01-28 09:13:29 -06:00
xfs_bmap.h
xfs: fix failed write truncation handling.
2010-12-01 07:40:19 -06:00
xfs_btree_trace.c
…
xfs_btree_trace.h
xfs: event tracing support
2009-12-14 23:08:16 -06:00
xfs_btree.c
xfs: connect up buffer reclaim priority hooks
2010-12-02 16:31:13 +11:00
xfs_btree.h
xfs: remove the ->kill_root btree operation
2010-10-18 15:07:38 -05:00
xfs_buf_item.c
xfs: fix efi item leak on forced shutdown
2011-01-28 09:01:33 -06:00
xfs_buf_item.h
xfs: use struct list_head for the buf cancel table
2010-12-16 16:05:22 -06:00
xfs_da_btree.c
xfs: remove xfs_buf wrappers
2010-10-18 15:08:07 -05:00
xfs_da_btree.h
xfs: convert dirnameops to unsigned char names
2010-01-20 10:47:17 +11:00
xfs_dfrag.c
xfs: delayed alloc blocks beyond EOF are valid after writeback
2010-12-01 07:40:20 -06:00
xfs_dfrag.h
xfs: clean up inconsistent variable naming in xfs_swap_extent
2010-01-15 15:31:23 -06:00
xfs_dinode.h
xfs: Extend project quotas to support 32bit project ids
2010-10-18 15:08:08 -05:00
xfs_dir2_block.c
xfs: fix gcc 4.6 set but not read and unused statement warnings
2010-07-26 13:16:51 -05:00
xfs_dir2_block.h
…
xfs_dir2_data.c
xfs: remove unneeded #include statements
2010-07-26 13:16:33 -05:00
xfs_dir2_data.h
…
xfs_dir2_leaf.c
xfs: remove xfs_buf wrappers
2010-10-18 15:08:07 -05:00
xfs_dir2_leaf.h
…
xfs_dir2_node.c
xfs: remove unneeded #include statements
2010-07-26 13:16:33 -05:00
xfs_dir2_node.h
xfs: make several more functions static
2010-01-15 15:31:38 -06:00
xfs_dir2_sf.c
xfs: remove unneeded #include statements
2010-07-26 13:16:33 -05:00
xfs_dir2_sf.h
…
xfs_dir2.c
xfs: split xfs_itrace_entry
2010-07-26 13:16:44 -05:00
xfs_dir2.h
xfs: make xfs_dir_cilookup_result use unsigned char
2010-01-20 10:47:25 +11:00
xfs_error.c
xfs: prevent NMI timeouts in cmn_err
2011-01-12 08:46:41 -06:00
xfs_error.h
xfs: prevent NMI timeouts in cmn_err
2011-01-12 08:46:41 -06:00
xfs_extfree_item.c
xfs: fix efi item leak on forced shutdown
2011-01-28 09:01:33 -06:00
xfs_extfree_item.h
xfs: Pull EFI/EFD handling out from under the AIL lock
2010-12-20 11:59:49 +11:00
xfs_filestream.c
xfs: tell lockdep about parent iolock usage in filestreams
2010-11-10 12:00:48 -06:00
xfs_filestream.h
xfs: clean up filestreams helpers
2010-07-26 13:16:51 -05:00
xfs_fs.h
xfs: Extend project quotas to support 32bit project ids
2010-10-18 15:08:08 -05:00
xfs_fsops.c
xfs: prevent leaking uninitialized stack memory in FSGEOMETRY_V1
2011-02-22 15:06:47 -06:00
xfs_fsops.h
xfs: ensure log covering transactions are synchronous
2011-01-11 20:28:17 -06:00
xfs_ialloc_btree.c
xfs: remove the ->kill_root btree operation
2010-10-18 15:07:38 -05:00
xfs_ialloc_btree.h
…
xfs_ialloc.c
xfs: remove xfs_buf wrappers
2010-10-18 15:08:07 -05:00
xfs_ialloc.h
xfs: rationalize xfs_inobt_lookup*
2009-09-01 12:45:39 -05:00
xfs_iget.c
Merge branch 'master' into for-linus-merged
2011-01-10 21:35:55 -06:00
xfs_inode_item.c
xfs: remove all the inodes on a buffer from the AIL in bulk
2010-12-20 12:03:17 +11:00
xfs_inode_item.h
xfs: simplify inode to transaction joining
2010-07-26 13:16:36 -05:00
xfs_inode.c
xfs: connect up buffer reclaim priority hooks
2010-12-02 16:31:13 +11:00
xfs_inode.h
xfs: don't truncate prealloc from frequently accessed inodes
2010-12-23 12:02:31 +11:00
xfs_inum.h
xfs: remove XFS_INO64_OFFSET
2009-08-31 14:46:22 -05:00
xfs_iomap.c
xfs: speculative delayed allocation uses rounddown_power_of_2 badly
2011-01-28 09:05:35 -06:00
xfs_iomap.h
xfs: kill xfs_iomap
2010-12-16 16:05:51 -06:00
xfs_itable.c
xfs: Extend project quotas to support 32bit project ids
2010-10-18 15:08:08 -05:00
xfs_itable.h
xfs: remove block number from inode lookup code
2010-06-24 11:35:17 +10:00
xfs_log_cil.c
xfs: handle CIl transaction commit failures correctly
2011-01-28 09:05:36 -06:00
xfs_log_priv.h
xfs: convert grant head manipulations to lockless algorithm
2010-12-21 12:29:14 +11:00
xfs_log_recover.c
xfs: prevent NMI timeouts in cmn_err
2011-01-12 08:46:41 -06:00
xfs_log_recover.h
xfs: Clean up XFS_BLI_* flag namespace
2010-05-24 10:33:39 -05:00
xfs_log.c
xfs: prevent NMI timeouts in cmn_err
2011-01-12 08:46:41 -06:00
xfs_log.h
xfs: handle CIl transaction commit failures correctly
2011-01-28 09:05:36 -06:00
xfs_mount.c
xfs: convert pag_ici_lock to a spin lock
2010-12-16 17:08:41 +11:00
xfs_mount.h
xfs: dynamic speculative EOF preallocation
2011-01-04 11:35:03 +11:00
xfs_mru_cache.c
workqueue: convert cancel_rearming_delayed_work[queue]() users to cancel_delayed_work_sync()
2010-12-15 10:56:11 +01:00
xfs_mru_cache.h
xfs: Kill filestreams cache flush
2010-01-15 15:34:22 -06:00
xfs_quota.h
xfs: fix a few compiler warnings with CONFIG_XFS_QUOTA=n
2010-11-10 12:00:48 -06:00
xfs_rename.c
xfs: log timestamp changes to the source inode in rename
2010-12-09 17:07:02 -06:00
xfs_rtalloc.c
xfs: use unhashed buffers for size checks
2010-10-18 15:07:50 -05:00
xfs_rtalloc.h
xfs: be more explicit if RT mount fails due to config
2010-05-28 14:58:24 -05:00
xfs_rw.c
xfs: remove unneeded #include statements
2010-07-26 13:16:33 -05:00
xfs_rw.h
xfs: only clear the suid bit once in xfs_write
2010-02-12 13:43:57 -06:00
xfs_sb.h
xfs: Extend project quotas to support 32bit project ids
2010-10-18 15:08:08 -05:00
xfs_trans_ail.c
xfs: use AIL bulk delete function to implement single delete
2010-12-20 12:36:15 +11:00
xfs_trans_buf.c
xfs: remove xfs_buf wrappers
2010-10-18 15:08:07 -05:00
xfs_trans_extfree.c
xfs: Pull EFI/EFD handling out from under the AIL lock
2010-12-20 11:59:49 +11:00
xfs_trans_inode.c
xfs: don't use vfs writeback for pure metadata modifications
2010-10-18 15:07:45 -05:00
xfs_trans_priv.h
xfs: use AIL bulk delete function to implement single delete
2010-12-20 12:36:15 +11:00
xfs_trans_space.h
…
xfs_trans.c
xfs: handle CIl transaction commit failures correctly
2011-01-28 09:05:36 -06:00
xfs_trans.h
xfs: connect up buffer reclaim priority hooks
2010-12-02 16:31:13 +11:00
xfs_types.h
xfs: Extend project quotas to support 32bit project ids
2010-10-18 15:08:08 -05:00
xfs_utils.c
xfs: remove xfs_cred.h
2010-10-18 15:08:06 -05:00
xfs_utils.h
xfs: remove xfs_cred.h
2010-10-18 15:08:06 -05:00
xfs_vnodeops.c
xfs: don't truncate prealloc from frequently accessed inodes
2010-12-23 12:02:31 +11:00
xfs_vnodeops.h
xfs: remove xfs_cred.h
2010-10-18 15:08:06 -05:00
xfs.h
xfs: event tracing support
2009-12-14 23:08:16 -06:00