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[XFS] kill deleted inodes list

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Now that the deleted inodes list is unused, kill it. This also removes the
i_reclaim list head from the xfs_inode, shrinking it by two pointers.

SGI-PV: 988142

SGI-Modid: xfs-linux-melb:xfs-kern:32334a

Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
This commit is contained in:
David Chinner 2008-10-30 17:37:49 +11:00 committed by Lachlan McIlroy
parent 7a3be02bae
commit 116545130c
8 changed files with 10 additions and 29 deletions
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2
fs/xfs/linux-2.6/xfs_super.c
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@ -913,7 +913,6 @@ xfs_fs_inode_init_once(
atomic_set(&ip->i_iocount, 0);
atomic_set(&ip->i_pincount, 0);
spin_lock_init(&ip->i_flags_lock);
INIT_LIST_HEAD(&ip->i_reclaim);
init_waitqueue_head(&ip->i_ipin_wait);
/*
* Because we want to use a counting completion, complete
@ -1546,7 +1545,6 @@ xfs_fs_fill_super(
goto out_free_args;
spin_lock_init(&mp->m_sb_lock);
mutex_init(&mp->m_ilock);
mutex_init(&mp->m_growlock);
atomic_set(&mp->m_active_trans, 0);
INIT_LIST_HEAD(&mp->m_sync_list);

6
fs/xfs/linux-2.6/xfs_sync.c
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@ -644,6 +644,11 @@ xfs_reclaim_inode(
return 0;
}
/*
* We set the inode flag atomically with the radix tree tag.
* Once we get tag lookups on the radix tree, this inode flag
* can go away.
*/
void
xfs_inode_set_reclaim_tag(
xfs_inode_t *ip)
@ -655,6 +660,7 @@ xfs_inode_set_reclaim_tag(
spin_lock(&ip->i_flags_lock);
radix_tree_tag_set(&pag->pag_ici_root,
XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG);
__xfs_iflags_set(ip, XFS_IRECLAIMABLE);
spin_unlock(&ip->i_flags_lock);
read_unlock(&pag->pag_ici_lock);
xfs_put_perag(mp, pag);

8
fs/xfs/xfs_iget.c
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@ -95,10 +95,6 @@ xfs_iget_cache_hit(
/* clear the radix tree reclaim flag as well. */
__xfs_inode_clear_reclaim_tag(mp, pag, ip);
read_unlock(&pag->pag_ici_lock);
XFS_MOUNT_ILOCK(mp);
list_del_init(&ip->i_reclaim);
XFS_MOUNT_IUNLOCK(mp);
} else if (!igrab(VFS_I(ip))) {
/* If the VFS inode is being torn down, pause and try again. */
error = EAGAIN;
@ -419,11 +415,7 @@ xfs_iextract(
write_unlock(&pag->pag_ici_lock);
xfs_put_perag(mp, pag);
/* Deal with the deleted inodes list */
XFS_MOUNT_ILOCK(mp);
list_del_init(&ip->i_reclaim);
mp->m_ireclaims++;
XFS_MOUNT_IUNLOCK(mp);
}
/*

4
fs/xfs/xfs_inode.c
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@ -811,7 +811,7 @@ xfs_inode_alloc(
ASSERT(atomic_read(&ip->i_iocount) == 0);
ASSERT(atomic_read(&ip->i_pincount) == 0);
ASSERT(!spin_is_locked(&ip->i_flags_lock));
ASSERT(list_empty(&ip->i_reclaim));
ASSERT(completion_done(&ip->i_flush));
/*
* initialise the VFS inode here to get failures
@ -2729,7 +2729,7 @@ xfs_idestroy(
ASSERT(atomic_read(&ip->i_iocount) == 0);
ASSERT(atomic_read(&ip->i_pincount) == 0);
ASSERT(!spin_is_locked(&ip->i_flags_lock));
ASSERT(list_empty(&ip->i_reclaim));
ASSERT(completion_done(&ip->i_flush));
kmem_zone_free(xfs_inode_zone, ip);
}

1
fs/xfs/xfs_inode.h
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@ -235,7 +235,6 @@ typedef struct dm_attrs_s {
typedef struct xfs_inode {
/* Inode linking and identification information. */
struct xfs_mount *i_mount; /* fs mount struct ptr */
struct list_head i_reclaim; /* reclaim list */
struct xfs_dquot *i_udquot; /* user dquot */
struct xfs_dquot *i_gdquot; /* group dquot */

1
fs/xfs/xfs_mount.c
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@ -580,7 +580,6 @@ xfs_mount_common(xfs_mount_t *mp, xfs_sb_t *sbp)
mp->m_blockmask = sbp->sb_blocksize - 1;
mp->m_blockwsize = sbp->sb_blocksize >> XFS_WORDLOG;
mp->m_blockwmask = mp->m_blockwsize - 1;
INIT_LIST_HEAD(&mp->m_del_inodes);
/*
* Setup for attributes, in case they get created.

5
fs/xfs/xfs_mount.h
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@ -248,8 +248,6 @@ typedef struct xfs_mount {
xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */
spinlock_t m_agirotor_lock;/* .. and lock protecting it */
xfs_agnumber_t m_maxagi; /* highest inode alloc group */
struct list_head m_del_inodes; /* inodes to reclaim */
mutex_t m_ilock; /* inode list mutex */
uint m_ireclaims; /* count of calls to reclaim*/
uint m_readio_log; /* min read size log bytes */
uint m_readio_blocks; /* min read size blocks */
@ -312,8 +310,7 @@ typedef struct xfs_mount {
int m_attr_magicpct;/* 37% of the blocksize */
int m_dir_magicpct; /* 37% of the dir blocksize */
__uint8_t m_mk_sharedro; /* mark shared ro on unmount */
__uint8_t m_inode_quiesce;/* call quiesce on new inodes.
field governed by m_ilock */
__uint8_t m_inode_quiesce;/* call quiesce on new inodes. */
__uint8_t m_sectbb_log; /* sectlog - BBSHIFT */
const struct xfs_nameops *m_dirnameops; /* vector of dir name ops */
int m_dirblksize; /* directory block sz--bytes */

12
fs/xfs/xfs_vnodeops.c
View File

@ -2835,18 +2835,8 @@ xfs_reclaim(
xfs_iflock(ip);
xfs_iflags_set(ip, XFS_IRECLAIMABLE);
return xfs_reclaim_inode(ip, 1, XFS_IFLUSH_DELWRI_ELSE_SYNC);
} else {
xfs_mount_t *mp = ip->i_mount;
/* Protect sync and unpin from us */
XFS_MOUNT_ILOCK(mp);
spin_lock(&ip->i_flags_lock);
__xfs_iflags_set(ip, XFS_IRECLAIMABLE);
spin_unlock(&ip->i_flags_lock);
list_add_tail(&ip->i_reclaim, &mp->m_del_inodes);
XFS_MOUNT_IUNLOCK(mp);
xfs_inode_set_reclaim_tag(ip);
}
xfs_inode_set_reclaim_tag(ip);
return 0;
}