diff options
| -rw-r--r-- | fs/ubifs/file.c | 4 | ||||
| -rw-r--r-- | fs/ubifs/super.c | 17 | ||||
| -rw-r--r-- | fs/ubifs/ubifs.h | 2 |
3 files changed, 15 insertions, 8 deletions
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index 9124eee73aea..8be827cc7078 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -705,12 +705,12 @@ static int ubifs_do_bulk_read(struct ubifs_info *c, struct page *page1) int err, page_idx, page_cnt, ret = 0, n = 0; loff_t isize; - bu = kmalloc(sizeof(struct bu_info), GFP_NOFS); + bu = kmalloc(sizeof(struct bu_info), GFP_NOFS | __GFP_NOWARN); if (!bu) return 0; bu->buf_len = c->bulk_read_buf_size; - bu->buf = kmalloc(bu->buf_len, GFP_NOFS); + bu->buf = kmalloc(bu->buf_len, GFP_NOFS | __GFP_NOWARN); if (!bu->buf) goto out_free; diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 8780efbf40ac..ea493e6f2652 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -36,6 +36,12 @@ #include <linux/mount.h> #include "ubifs.h" +/* + * Maximum amount of memory we may 'kmalloc()' without worrying that we are + * allocating too much. + */ +#define UBIFS_KMALLOC_OK (128*1024) + /* Slab cache for UBIFS inodes */ struct kmem_cache *ubifs_inode_slab; @@ -561,17 +567,18 @@ static int init_constants_early(struct ubifs_info *c) * calculations when reporting free space. */ c->leb_overhead = c->leb_size % UBIFS_MAX_DATA_NODE_SZ; + /* Buffer size for bulk-reads */ c->bulk_read_buf_size = UBIFS_MAX_BULK_READ * UBIFS_MAX_DATA_NODE_SZ; if (c->bulk_read_buf_size > c->leb_size) c->bulk_read_buf_size = c->leb_size; - if (c->bulk_read_buf_size > 128 * 1024) { - /* Check if we can kmalloc more than 128KiB */ - void *try = kmalloc(c->bulk_read_buf_size, GFP_KERNEL); - + if (c->bulk_read_buf_size > UBIFS_KMALLOC_OK) { + /* Check if we can kmalloc that much */ + void *try = kmalloc(c->bulk_read_buf_size, + GFP_KERNEL | __GFP_NOWARN); kfree(try); if (!try) - c->bulk_read_buf_size = 128 * 1024; + c->bulk_read_buf_size = UBIFS_KMALLOC_OK; } return 0; } diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index a7bd32fa15b9..06ba51efd65d 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -753,7 +753,7 @@ struct ubifs_znode { }; /** - * struct bu_info - bulk-read information + * struct bu_info - bulk-read information. * @key: first data node key * @zbranch: zbranches of data nodes to bulk read * @buf: buffer to read into |