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[XFS] Add infrastructure for tracking I/O completions

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SGI-PV: 934766
SGI-Modid: xfs-linux:xfs-kern:196856a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Christoph Hellwig
2005-09-02 16:58:49 +10:00
committed by Nathan Scott
parent 51c91ed52b
commit 0829c3602f
4 changed files with 132 additions and 85 deletions
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58
fs/xfs/linux-2.6/xfs_super.c
View File

@@ -70,11 +70,14 @@
#include <linux/namei.h>
#include <linux/init.h>
#include <linux/mount.h>
#include <linux/mempool.h>
#include <linux/writeback.h>
STATIC struct quotactl_ops linvfs_qops;
STATIC struct super_operations linvfs_sops;
STATIC kmem_zone_t *linvfs_inode_zone;
STATIC kmem_zone_t *xfs_vnode_zone;
STATIC kmem_zone_t *xfs_ioend_zone;
mempool_t *xfs_ioend_pool;
STATIC struct xfs_mount_args *
xfs_args_allocate(
@@ -281,8 +284,7 @@ linvfs_alloc_inode(
{
vnode_t *vp;
vp = (vnode_t *)kmem_cache_alloc(linvfs_inode_zone,
kmem_flags_convert(KM_SLEEP));
vp = kmem_cache_alloc(xfs_vnode_zone, kmem_flags_convert(KM_SLEEP));
if (!vp)
return NULL;
return LINVFS_GET_IP(vp);
@@ -292,11 +294,11 @@ STATIC void
linvfs_destroy_inode(
struct inode *inode)
{
kmem_cache_free(linvfs_inode_zone, LINVFS_GET_VP(inode));
kmem_zone_free(xfs_vnode_zone, LINVFS_GET_VP(inode));
}
STATIC void
init_once(
linvfs_inode_init_once(
void *data,
kmem_cache_t *cachep,
unsigned long flags)
@@ -309,21 +311,41 @@ init_once(
}
STATIC int
init_inodecache( void )
linvfs_init_zones(void)
{
linvfs_inode_zone = kmem_cache_create("linvfs_icache",
xfs_vnode_zone = kmem_cache_create("xfs_vnode",
sizeof(vnode_t), 0, SLAB_RECLAIM_ACCOUNT,
init_once, NULL);
if (linvfs_inode_zone == NULL)
return -ENOMEM;
linvfs_inode_init_once, NULL);
if (!xfs_vnode_zone)
goto out;
xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend");
if (!xfs_ioend_zone)
goto out_destroy_vnode_zone;
xfs_ioend_pool = mempool_create(4 * MAX_BUF_PER_PAGE,
mempool_alloc_slab, mempool_free_slab,
xfs_ioend_zone);
if (!xfs_ioend_pool)
goto out_free_ioend_zone;
return 0;
out_free_ioend_zone:
kmem_zone_destroy(xfs_ioend_zone);
out_destroy_vnode_zone:
kmem_zone_destroy(xfs_vnode_zone);
out:
return -ENOMEM;
}
STATIC void
destroy_inodecache( void )
linvfs_destroy_zones(void)
{
if (kmem_cache_destroy(linvfs_inode_zone))
printk(KERN_WARNING "%s: cache still in use!\n", __FUNCTION__);
mempool_destroy(xfs_ioend_pool);
kmem_zone_destroy(xfs_vnode_zone);
kmem_zone_destroy(xfs_ioend_zone);
}
/*
@@ -873,9 +895,9 @@ init_xfs_fs( void )
ktrace_init(64);
error = init_inodecache();
error = linvfs_init_zones();
if (error < 0)
goto undo_inodecache;
goto undo_zones;
error = pagebuf_init();
if (error < 0)
@@ -896,9 +918,9 @@ undo_register:
pagebuf_terminate();
undo_pagebuf:
destroy_inodecache();
linvfs_destroy_zones();
undo_inodecache:
undo_zones:
return error;
}
@@ -910,7 +932,7 @@ exit_xfs_fs( void )
unregister_filesystem(&xfs_fs_type);
xfs_cleanup();
pagebuf_terminate();
destroy_inodecache();
linvfs_destroy_zones();
ktrace_uninit();
}