diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-26 10:49:11 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-26 10:49:11 -0700 |
commit | 8a0599dd2471f2a2e409498c08a0ab339057ad06 (patch) | |
tree | c23c72f3eb4a95d8854720be9d8a228d4adae54a /fs/xfs/linux-2.6/xfs_discard.c | |
parent | 35806b4f7c5620b547f183e9d53f7cfaeabb582b (diff) | |
parent | 233eebb9a96f956c541c0c9094fd321894bd93a7 (diff) |
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: correctly decrement the extent buffer index in xfs_bmap_del_extent
xfs: check for valid indices in xfs_iext_get_ext and xfs_iext_idx_to_irec
xfs: fix up asserts in xfs_iflush_fork
xfs: do not do pointer arithmetic on extent records
xfs: do not use unchecked extent indices in xfs_bunmapi
xfs: do not use unchecked extent indices in xfs_bmapi
xfs: do not use unchecked extent indices in xfs_bmap_add_extent_*
xfs: remove if_lastex
xfs: remove the unused XFS_BMAPI_RSVBLOCKS flag
xfs: do not discard alloc btree blocks
xfs: add online discard support
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_discard.c')
-rw-r--r-- | fs/xfs/linux-2.6/xfs_discard.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_discard.c b/fs/xfs/linux-2.6/xfs_discard.c index d61611c88012..244e797dae32 100644 --- a/fs/xfs/linux-2.6/xfs_discard.c +++ b/fs/xfs/linux-2.6/xfs_discard.c @@ -191,3 +191,32 @@ xfs_ioc_trim( return -XFS_ERROR(EFAULT); return 0; } + +int +xfs_discard_extents( + struct xfs_mount *mp, + struct list_head *list) +{ + struct xfs_busy_extent *busyp; + int error = 0; + + list_for_each_entry(busyp, list, list) { + trace_xfs_discard_extent(mp, busyp->agno, busyp->bno, + busyp->length); + + error = -blkdev_issue_discard(mp->m_ddev_targp->bt_bdev, + XFS_AGB_TO_DADDR(mp, busyp->agno, busyp->bno), + XFS_FSB_TO_BB(mp, busyp->length), + GFP_NOFS, 0); + if (error && error != EOPNOTSUPP) { + xfs_info(mp, + "discard failed for extent [0x%llu,%u], error %d", + (unsigned long long)busyp->bno, + busyp->length, + error); + return error; + } + } + + return 0; +} |