From 0829c3602f4df95898752c402ea90b92a3e33154 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 2 Sep 2005 16:58:49 +1000 Subject: [XFS] Add infrastructure for tracking I/O completions SGI-PV: 934766 SGI-Modid: xfs-linux:xfs-kern:196856a Signed-off-by: Christoph Hellwig Signed-off-by: Nathan Scott --- fs/xfs/linux-2.6/xfs_super.c | 58 ++++++++++++++++++++++++++++++-------------- 1 file changed, 40 insertions(+), 18 deletions(-) (limited to 'fs/xfs/linux-2.6/xfs_super.c') diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index d2c8a11e22b8..1a0bcbbc0a86 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -70,11 +70,14 @@ #include #include #include +#include #include 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(); } -- cgit v1.2.3