diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2022-05-22 08:59:48 +0300 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2022-05-22 08:59:48 +0300 |
| commit | e2c78949b641d34cb4051b32c2fa5e03a4bfef35 (patch) | |
| tree | 6f1f631571c60a88b9ef410d67787a0ed8b0f73c /fs/xfs/libxfs | |
| parent | b53d212b4b5c29ab16edb7eca2b0e05927b7aa34 (diff) | |
| download | linux-e2c78949b641d34cb4051b32c2fa5e03a4bfef35.tar.xz | |
xfs: use a separate slab cache for deferred xattr work state
Create a separate slab cache for struct xfs_attr_item objects, since we
can pack the (104-byte) intent items more tightly than we can with the
general slab cache objects. On x86, this means 39 intents per memory
page instead of 32.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/libxfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_attr.c | 20 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_attr.h | 4 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_defer.c | 4 |
3 files changed, 27 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index b49e7dbf9a5b..93aa892ed0e3 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -29,6 +29,7 @@ struct kmem_cache *xfs_attri_cache; struct kmem_cache *xfs_attrd_cache; +struct kmem_cache *xfs_attr_intent_cache; /* * xfs_attr.c @@ -902,7 +903,7 @@ xfs_attr_item_init( struct xfs_attr_item *new; - new = kmem_zalloc(sizeof(struct xfs_attr_item), KM_NOFS); + new = kmem_cache_zalloc(xfs_attr_intent_cache, GFP_NOFS | __GFP_NOFAIL); new->xattri_op_flags = op_flags; new->xattri_da_args = args; @@ -1650,3 +1651,20 @@ xfs_attr_namecheck( /* There shouldn't be any nulls here */ return !memchr(name, 0, length); } + +int __init +xfs_attr_intent_init_cache(void) +{ + xfs_attr_intent_cache = kmem_cache_create("xfs_attr_item", + sizeof(struct xfs_attr_item), + 0, 0, NULL); + + return xfs_attr_intent_cache != NULL ? 0 : -ENOMEM; +} + +void +xfs_attr_intent_destroy_cache(void) +{ + kmem_cache_destroy(xfs_attr_intent_cache); + xfs_attr_intent_cache = NULL; +} diff --git a/fs/xfs/libxfs/xfs_attr.h b/fs/xfs/libxfs/xfs_attr.h index c739caa11a4b..cb3b3d270569 100644 --- a/fs/xfs/libxfs/xfs_attr.h +++ b/fs/xfs/libxfs/xfs_attr.h @@ -634,4 +634,8 @@ xfs_attr_init_replace_state(struct xfs_da_args *args) return xfs_attr_init_add_state(args); } +extern struct kmem_cache *xfs_attr_intent_cache; +int __init xfs_attr_intent_init_cache(void); +void xfs_attr_intent_destroy_cache(void); + #endif /* __XFS_ATTR_H__ */ diff --git a/fs/xfs/libxfs/xfs_defer.c b/fs/xfs/libxfs/xfs_defer.c index ceb222b4f261..ed65f7e5a9c7 100644 --- a/fs/xfs/libxfs/xfs_defer.c +++ b/fs/xfs/libxfs/xfs_defer.c @@ -879,6 +879,9 @@ xfs_defer_init_item_caches(void) error = xfs_attrd_init_cache(); if (error) goto err; + error = xfs_attr_intent_init_cache(); + if (error) + goto err; return 0; err: xfs_defer_destroy_item_caches(); @@ -889,6 +892,7 @@ err: void xfs_defer_destroy_item_caches(void) { + xfs_attr_intent_destroy_cache(); xfs_attri_destroy_cache(); xfs_attrd_destroy_cache(); xfs_extfree_intent_destroy_cache(); |