diff options
| author | Dean Roehrich | 2005-05-05 13:27:19 -0700 |
|---|---|---|
| committer | Christoph Hellwig | 2005-05-05 13:27:19 -0700 |
| commit | 5fcbab355e1528545671a5221666ef640b8250c8 (patch) | |
| tree | 03fbc618c046b16b00d5fdd9b4479e15241c4e34 | |
| parent | 9effd8e62570c6e47b91734770e6122002c33ed5 (diff) | |
[XFS] Add ATTR_NOLOCK for xfs_setattr to indicate that XFS_IOLOCK is held
SGI Modid: xfs-linux:xfs-kern:190711a
Signed-off-by: Dean Roehrich <roehrich@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
.
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_vnode.h | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_vnodeops.c | 11 |
2 files changed, 10 insertions, 2 deletions
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h index 3b40c929544e..4ee229301241 100644 --- a/fs/xfs/linux-2.6/xfs_vnode.h +++ b/fs/xfs/linux-2.6/xfs_vnode.h @@ -626,6 +626,7 @@ static inline int VN_BAD(struct vnode *vp) #define ATTR_DMI 0x08 /* invocation from a DMI function */ #define ATTR_LAZY 0x80 /* set/get attributes lazily */ #define ATTR_NONBLOCK 0x100 /* return EAGAIN if operation would block */ +#define ATTR_NOLOCK 0x200 /* Don't grab any conflicting locks */ /* * Flags to VOP_FSYNC and VOP_RECLAIM. diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 70092963ca9e..25a526629b12 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -305,7 +305,7 @@ xfs_setattr( int mandlock_before, mandlock_after; struct xfs_dquot *udqp, *gdqp, *olddquot1, *olddquot2; int file_owner; - int need_iolock = (flags & ATTR_DMI) == 0; + int need_iolock = 1; vp = BHV_TO_VNODE(bdp); vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address); @@ -384,6 +384,9 @@ xfs_setattr( */ tp = NULL; lock_flags = XFS_ILOCK_EXCL; + ASSERT(flags & ATTR_NOLOCK ? flags & ATTR_DMI : 1); + if (flags & ATTR_NOLOCK) + need_iolock = 0; if (!(mask & XFS_AT_SIZE)) { if ((mask != (XFS_AT_CTIME|XFS_AT_ATIME|XFS_AT_MTIME)) || (mp->m_flags & XFS_MOUNT_WSYNC)) { @@ -4320,7 +4323,7 @@ xfs_free_file_space( int rt; xfs_fileoff_t startoffset_fsb; xfs_trans_t *tp; - int need_iolock = (attr_flags & ATTR_DMI) == 0; + int need_iolock = 1; vn_trace_entry(XFS_ITOV(ip), __FUNCTION__, (inst_t *)__return_address); mp = ip->i_mount; @@ -4348,8 +4351,12 @@ xfs_free_file_space( return(error); } + ASSERT(attr_flags & ATTR_NOLOCK ? attr_flags & ATTR_DMI : 1); + if (attr_flags & ATTR_NOLOCK) + need_iolock = 0; if (need_iolock) xfs_ilock(ip, XFS_IOLOCK_EXCL); + rounding = MAX((__uint8_t)(1 << mp->m_sb.sb_blocklog), (__uint8_t)NBPP); ilen = len + (offset & (rounding - 1)); |