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| author | Gu Zheng <guz.fnst@cn.fujitsu.com> | 2013-10-22 14:52:26 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-10-22 20:16:02 +0900 |
| commit | 7bd59381c82defe19875284c48b1ac9dacd16e8f (patch) | |
| tree | 872cece782fc04b77b220060022f43d08886090b /fs/f2fs/f2fs.h | |
| parent | 435f2a1b58ac8f50894f23549c97791085f7cba2 (diff) | |
| download | lwn-7bd59381c82defe19875284c48b1ac9dacd16e8f.tar.gz lwn-7bd59381c82defe19875284c48b1ac9dacd16e8f.zip | |
f2fs: introduce f2fs_kmem_cache_alloc to hide the unfailed, kmem cache allocation
Introduce the unfailed version of kmem_cache_alloc named f2fs_kmem_cache_alloc
to hide the retry routine and make the code a bit cleaner.
v2:
Fix the wrong use of 'retry' tag pointed out by Gao feng.
Use more neat code to remove redundant tag suggested by Haicheng Li.
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 171c52fc95bb..29492754bd7d 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -18,6 +18,7 @@ #include <linux/crc32.h> #include <linux/magic.h> #include <linux/kobject.h> +#include <linux/sched.h> /* * For mount options @@ -787,6 +788,20 @@ static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, ctor); } +static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, + gfp_t flags) +{ + void *entry; +retry: + entry = kmem_cache_alloc(cachep, flags); + if (!entry) { + cond_resched(); + goto retry; + } + + return entry; +} + #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) static inline bool IS_INODE(struct page *page) |