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| author | Dean Roehrich <roehrich@sgi.com> | 2005-06-22 00:20:44 (GMT) |
|---|---|---|
| committer | Nathan Scott <nathans@sgi.com> | 2005-06-22 00:20:44 (GMT) |
| commit | e1a40fa907498030b6e432c0dbcb06d7a9f14ee3 (patch) | |
| tree | 8f6ad8643346358ef39d7d28d1e001af81eb6e9a /fs/xfs/linux-2.6/xfs_lrw.c | |
| parent | ad89d0212e32c5cf27dfcbad67b91a32b9878529 (diff) | |
| download | linux-e1a40fa907498030b6e432c0dbcb06d7a9f14ee3.tar.xz | |
[XFS] Handle inode semaphores properly for dmapi queues
SGI-PV: 931572
SGI-Modid: xfs-linux-melb:xfs-kern:189560a
Signed-off-by: Dean Roehrich <roehrich@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_lrw.c')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_lrw.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c index 46b61a8..acab58c 100644 --- a/fs/xfs/linux-2.6/xfs_lrw.c +++ b/fs/xfs/linux-2.6/xfs_lrw.c @@ -280,10 +280,11 @@ xfs_read( if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) { vrwlock_t locktype = VRWLOCK_READ; + int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags); ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp), *offset, size, - FILP_DELAY_FLAG(file), &locktype); + dmflags, &locktype); if (ret) { xfs_iunlock(ip, XFS_IOLOCK_SHARED); goto unlock_isem; @@ -843,11 +844,15 @@ retry: !(ioflags & IO_INVIS)) { xfs_rwunlock(bdp, locktype); + if (need_isem) + up(&inode->i_sem); error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, vp, DM_RIGHT_NULL, vp, DM_RIGHT_NULL, NULL, NULL, 0, 0, 0); /* Delay flag intentionally unused */ if (error) - goto out_unlock_isem; + goto out_nounlocks; + if (need_isem) + down(&inode->i_sem); xfs_rwlock(bdp, locktype); pos = xip->i_d.di_size; ret = 0; @@ -962,6 +967,7 @@ retry: out_unlock_isem: if (need_isem) up(&inode->i_sem); + out_nounlocks: return -error; } |