diff options
Diffstat (limited to 'fs/fat/cache.c')
| -rw-r--r-- | fs/fat/cache.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/fs/fat/cache.c b/fs/fat/cache.c index 923990e4f16..91ad9e1c944 100644 --- a/fs/fat/cache.c +++ b/fs/fat/cache.c @@ -9,6 +9,7 @@ */ #include <linux/fs.h> +#include <linux/slab.h> #include <linux/buffer_head.h> #include "fat.h" @@ -150,6 +151,13 @@ static void fat_cache_add(struct inode *inode, struct fat_cache_id *new) spin_unlock(&MSDOS_I(inode)->cache_lru_lock); tmp = fat_cache_alloc(inode); + if (!tmp) { + spin_lock(&MSDOS_I(inode)->cache_lru_lock); + MSDOS_I(inode)->nr_caches--; + spin_unlock(&MSDOS_I(inode)->cache_lru_lock); + return; + } + spin_lock(&MSDOS_I(inode)->cache_lru_lock); cache = fat_cache_merge(inode, new); if (cache != NULL) { @@ -182,7 +190,8 @@ static void __fat_cache_inval_inode(struct inode *inode) struct fat_cache *cache; while (!list_empty(&i->cache_lru)) { - cache = list_entry(i->cache_lru.next, struct fat_cache, cache_list); + cache = list_entry(i->cache_lru.next, + struct fat_cache, cache_list); list_del_init(&cache->cache_list); i->nr_caches--; fat_cache_free(cache); @@ -241,9 +250,10 @@ int fat_get_cluster(struct inode *inode, int cluster, int *fclus, int *dclus) while (*fclus < cluster) { /* prevent the infinite loop of cluster chain */ if (*fclus > limit) { - fat_fs_error(sb, "%s: detected the cluster chain loop" - " (i_pos %lld)", __func__, - MSDOS_I(inode)->i_pos); + fat_fs_error_ratelimit(sb, + "%s: detected the cluster chain loop" + " (i_pos %lld)", __func__, + MSDOS_I(inode)->i_pos); nr = -EIO; goto out; } @@ -252,9 +262,10 @@ int fat_get_cluster(struct inode *inode, int cluster, int *fclus, int *dclus) if (nr < 0) goto out; else if (nr == FAT_ENT_FREE) { - fat_fs_error(sb, "%s: invalid cluster chain" - " (i_pos %lld)", __func__, - MSDOS_I(inode)->i_pos); + fat_fs_error_ratelimit(sb, + "%s: invalid cluster chain (i_pos %lld)", + __func__, + MSDOS_I(inode)->i_pos); nr = -EIO; goto out; } else if (nr == FAT_ENT_EOF) { |