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[XFS] Clean up i_flags and i_flags_lock handling.

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SGI-PV: 956832
SGI-Modid: xfs-linux-melb:xfs-kern:27358a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nscott@aconex.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
This commit is contained in:
David Chinner 2006-11-11 18:04:54 +11:00 committed by Tim Shimmin
parent 2e2e7bb1fd
commit 7a18c38607
5 changed files with 57 additions and 35 deletions
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4
fs/xfs/linux-2.6/xfs_super.c
View file

@ -227,9 +227,7 @@ xfs_initialize_vnode(
xfs_revalidate_inode(XFS_BHVTOM(bdp), vp, ip);
xfs_set_inodeops(inode);
spin_lock(&ip->i_flags_lock);
ip->i_flags &= ~XFS_INEW;
spin_unlock(&ip->i_flags_lock);
xfs_iflags_clear(ip, XFS_INEW);
barrier();
unlock_new_inode(inode);

20
fs/xfs/xfs_iget.c
View file

@ -215,7 +215,7 @@ xfs_iget_core(
* If INEW is set this inode is being set up
* we need to pause and try again.
*/
if (ip->i_flags & XFS_INEW) {
if (xfs_iflags_test(ip, XFS_INEW)) {
read_unlock(&ih->ih_lock);
delay(1);
XFS_STATS_INC(xs_ig_frecycle);
@ -230,7 +230,7 @@ xfs_iget_core(
* on its way out of the system,
* we need to pause and try again.
*/
if (ip->i_flags & XFS_IRECLAIM) {
if (xfs_iflags_test(ip, XFS_IRECLAIM)) {
read_unlock(&ih->ih_lock);
delay(1);
XFS_STATS_INC(xs_ig_frecycle);
@ -243,9 +243,7 @@ xfs_iget_core(
XFS_STATS_INC(xs_ig_found);
spin_lock(&ip->i_flags_lock);
ip->i_flags &= ~XFS_IRECLAIMABLE;
spin_unlock(&ip->i_flags_lock);
xfs_iflags_clear(ip, XFS_IRECLAIMABLE);
version = ih->ih_version;
read_unlock(&ih->ih_lock);
xfs_ihash_promote(ih, ip, version);
@ -299,10 +297,7 @@ xfs_iget_core(
if (lock_flags != 0)
xfs_ilock(ip, lock_flags);
spin_lock(&ip->i_flags_lock);
ip->i_flags &= ~XFS_ISTALE;
spin_unlock(&ip->i_flags_lock);
xfs_iflags_clear(ip, XFS_ISTALE);
vn_trace_exit(vp, "xfs_iget.found",
(inst_t *)__return_address);
goto return_ip;
@ -371,10 +366,7 @@ xfs_iget_core(
ih->ih_next = ip;
ip->i_udquot = ip->i_gdquot = NULL;
ih->ih_version++;
spin_lock(&ip->i_flags_lock);
ip->i_flags |= XFS_INEW;
spin_unlock(&ip->i_flags_lock);
xfs_iflags_set(ip, XFS_INEW);
write_unlock(&ih->ih_lock);
/*
@ -625,7 +617,7 @@ xfs_iput_new(xfs_inode_t *ip,
vn_trace_entry(vp, "xfs_iput_new", (inst_t *)__return_address);
if ((ip->i_d.di_mode == 0)) {
ASSERT(!(ip->i_flags & XFS_IRECLAIMABLE));
ASSERT(!xfs_iflags_test(ip, XFS_IRECLAIMABLE));
vn_mark_bad(vp);
}
if (inode->i_state & I_NEW)

17
fs/xfs/xfs_inode.c
View file

@ -2193,7 +2193,7 @@ xfs_ifree_cluster(
/* Inode not in memory or we found it already,
* nothing to do
*/
if (!ip || (ip->i_flags & XFS_ISTALE)) {
if (!ip || xfs_iflags_test(ip, XFS_ISTALE)) {
read_unlock(&ih->ih_lock);
continue;
}
@ -2215,10 +2215,7 @@ xfs_ifree_cluster(
if (ip == free_ip) {
if (xfs_iflock_nowait(ip)) {
spin_lock(&ip->i_flags_lock);
ip->i_flags |= XFS_ISTALE;
spin_unlock(&ip->i_flags_lock);
xfs_iflags_set(ip, XFS_ISTALE);
if (xfs_inode_clean(ip)) {
xfs_ifunlock(ip);
} else {
@ -2231,9 +2228,7 @@ xfs_ifree_cluster(
if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) {
if (xfs_iflock_nowait(ip)) {
spin_lock(&ip->i_flags_lock);
ip->i_flags |= XFS_ISTALE;
spin_unlock(&ip->i_flags_lock);
xfs_iflags_set(ip, XFS_ISTALE);
if (xfs_inode_clean(ip)) {
xfs_ifunlock(ip);
@ -2263,9 +2258,7 @@ xfs_ifree_cluster(
AIL_LOCK(mp,s);
iip->ili_flush_lsn = iip->ili_item.li_lsn;
AIL_UNLOCK(mp, s);
spin_lock(&iip->ili_inode->i_flags_lock);
iip->ili_inode->i_flags |= XFS_ISTALE;
spin_unlock(&iip->ili_inode->i_flags_lock);
xfs_iflags_set(ip, XFS_ISTALE);
pre_flushed++;
}
lip = lip->li_bio_list;
@ -2764,7 +2757,7 @@ xfs_iunpin(
struct inode *inode = NULL;
spin_lock(&ip->i_flags_lock);
if (!(ip->i_flags & (XFS_IRECLAIM|XFS_IRECLAIMABLE))) {
if (!__xfs_iflags_test(ip, XFS_IRECLAIM|XFS_IRECLAIMABLE)) {
bhv_vnode_t *vp = XFS_ITOV_NULL(ip);
/* make sync come back and flush this inode */

41
fs/xfs/xfs_inode.h
View file

@ -305,6 +305,47 @@ typedef struct xfs_inode {
#endif
} xfs_inode_t;
/*
* i_flags helper functions
*/
static inline void
__xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
{
ip->i_flags |= flags;
}
static inline void
xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
{
spin_lock(&ip->i_flags_lock);
__xfs_iflags_set(ip, flags);
spin_unlock(&ip->i_flags_lock);
}
static inline void
xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
{
spin_lock(&ip->i_flags_lock);
ip->i_flags &= ~flags;
spin_unlock(&ip->i_flags_lock);
}
static inline int
__xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
{
return (ip->i_flags & flags);
}
static inline int
xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
{
int ret;
spin_lock(&ip->i_flags_lock);
ret = __xfs_iflags_test(ip, flags);
spin_unlock(&ip->i_flags_lock);
return ret;
}
#endif /* __KERNEL__ */

10
fs/xfs/xfs_vnodeops.c
View file

@ -3844,9 +3844,7 @@ xfs_reclaim(
XFS_MOUNT_ILOCK(mp);
vn_bhv_remove(VN_BHV_HEAD(vp), XFS_ITOBHV(ip));
list_add_tail(&ip->i_reclaim, &mp->m_del_inodes);
spin_lock(&ip->i_flags_lock);
ip->i_flags |= XFS_IRECLAIMABLE;
spin_unlock(&ip->i_flags_lock);
xfs_iflags_set(ip, XFS_IRECLAIMABLE);
XFS_MOUNT_IUNLOCK(mp);
}
return 0;
@ -3872,8 +3870,8 @@ xfs_finish_reclaim(
*/
write_lock(&ih->ih_lock);
spin_lock(&ip->i_flags_lock);
if ((ip->i_flags & XFS_IRECLAIM) ||
(!(ip->i_flags & XFS_IRECLAIMABLE) && vp == NULL)) {
if (__xfs_iflags_test(ip, XFS_IRECLAIM) ||
(!__xfs_iflags_test(ip, XFS_IRECLAIMABLE) && vp == NULL)) {
spin_unlock(&ip->i_flags_lock);
write_unlock(&ih->ih_lock);
if (locked) {
@ -3882,7 +3880,7 @@ xfs_finish_reclaim(
}
return 1;
}
ip->i_flags |= XFS_IRECLAIM;
__xfs_iflags_set(ip, XFS_IRECLAIM);
spin_unlock(&ip->i_flags_lock);
write_unlock(&ih->ih_lock);