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authorDavid Chinner <david@fromorbit.com>2008-10-30 17:36:14 +1100
committerLachlan McIlroy <lachlan@sgi.com>2008-10-30 17:36:14 +1100
commitbf904248a2adb3f3be4eb4fb1837ce3bb28cca76 (patch)
tree288306924f640f19d881166a3b50fa59b6e9e7e7 /fs/xfs/xfs_vnodeops.c
parent8290c35f87304a6b73d4fd17b03580b4f7425de8 (diff)
[XFS] Combine the XFS and Linux inodes
To avoid issues with different lifecycles of XFS and Linux inodes, embedd the linux inode inside the XFS inode. This means that the linux inode has the same lifecycle as the XFS inode, even when it has been released by the OS. XFS inodes don't live much longer than this (a short stint in reclaim at most), so there isn't significant memory usage penalties here. Version 3 o kill xfs_icount() Version 2 o remove unused commented out code from xfs_iget(). o kill useless cast in VFS_I() SGI-PV: 988141 SGI-Modid: xfs-linux-melb:xfs-kern:32323a Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org>
Diffstat (limited to 'fs/xfs/xfs_vnodeops.c')
-rw-r--r--fs/xfs/xfs_vnodeops.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index a6714579a414..7fb577c9f9d8 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -2833,6 +2833,7 @@ xfs_reclaim(
if (!ip->i_update_core && (ip->i_itemp == NULL)) {
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_iflock(ip);
+ xfs_iflags_set(ip, XFS_IRECLAIMABLE);
return xfs_finish_reclaim(ip, 1, XFS_IFLUSH_DELWRI_ELSE_SYNC);
} else {
xfs_mount_t *mp = ip->i_mount;
@@ -2841,8 +2842,6 @@ xfs_reclaim(
XFS_MOUNT_ILOCK(mp);
spin_lock(&ip->i_flags_lock);
__xfs_iflags_set(ip, XFS_IRECLAIMABLE);
- VFS_I(ip)->i_private = NULL;
- ip->i_vnode = NULL;
spin_unlock(&ip->i_flags_lock);
list_add_tail(&ip->i_reclaim, &mp->m_del_inodes);
XFS_MOUNT_IUNLOCK(mp);
@@ -2857,10 +2856,6 @@ xfs_finish_reclaim(
int sync_mode)
{
xfs_perag_t *pag = xfs_get_perag(ip->i_mount, ip->i_ino);
- struct inode *vp = VFS_I(ip);
-
- if (vp && VN_BAD(vp))
- goto reclaim;
/* The hash lock here protects a thread in xfs_iget_core from
* racing with us on linking the inode back with a vnode.
@@ -2870,7 +2865,7 @@ xfs_finish_reclaim(
write_lock(&pag->pag_ici_lock);
spin_lock(&ip->i_flags_lock);
if (__xfs_iflags_test(ip, XFS_IRECLAIM) ||
- (!__xfs_iflags_test(ip, XFS_IRECLAIMABLE) && vp == NULL)) {
+ !__xfs_iflags_test(ip, XFS_IRECLAIMABLE)) {
spin_unlock(&ip->i_flags_lock);
write_unlock(&pag->pag_ici_lock);
if (locked) {
@@ -2904,15 +2899,13 @@ xfs_finish_reclaim(
* In the case of a forced shutdown we rely on xfs_iflush() to
* wait for the inode to be unpinned before returning an error.
*/
- if (xfs_iflush(ip, sync_mode) == 0) {
+ if (!is_bad_inode(VFS_I(ip)) && xfs_iflush(ip, sync_mode) == 0) {
/* synchronize with xfs_iflush_done */
xfs_iflock(ip);
xfs_ifunlock(ip);
}
xfs_iunlock(ip, XFS_ILOCK_EXCL);
-
- reclaim:
xfs_ireclaim(ip);
return 0;
}