diff options
| -rw-r--r-- | fs/fat/cache.c | 13 | ||||
| -rw-r--r-- | fs/fat/fat.h | 12 | ||||
| -rw-r--r-- | fs/fat/inode.c | 2 | ||||
| -rw-r--r-- | fs/fat/misc.c | 22 |
4 files changed, 31 insertions, 18 deletions
diff --git a/fs/fat/cache.c b/fs/fat/cache.c index 113f0a1..ae8200f 100644 --- a/fs/fat/cache.c +++ b/fs/fat/cache.c @@ -242,9 +242,10 @@ 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; } @@ -253,9 +254,9 @@ 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) { diff --git a/fs/fat/fat.h b/fs/fat/fat.h index eb821ee..53dba57 100644 --- a/fs/fat/fat.h +++ b/fs/fat/fat.h @@ -6,6 +6,7 @@ #include <linux/nls.h> #include <linux/fs.h> #include <linux/mutex.h> +#include <linux/ratelimit.h> #include <linux/msdos_fs.h> /* @@ -82,6 +83,8 @@ struct msdos_sb_info { struct fatent_operations *fatent_ops; struct inode *fat_inode; + struct ratelimit_state ratelimit; + spinlock_t inode_hash_lock; struct hlist_head inode_hashtable[FAT_HASH_SIZE]; }; @@ -322,8 +325,13 @@ extern int fat_fill_super(struct super_block *sb, void *data, int silent, extern int fat_flush_inodes(struct super_block *sb, struct inode *i1, struct inode *i2); /* fat/misc.c */ -extern void fat_fs_error(struct super_block *s, const char *fmt, ...) - __attribute__ ((format (printf, 2, 3))) __cold; +extern void +__fat_fs_error(struct super_block *s, int report, const char *fmt, ...) + __attribute__ ((format (printf, 3, 4))) __cold; +#define fat_fs_error(s, fmt, args...) \ + __fat_fs_error(s, 1, fmt , ## args) +#define fat_fs_error_ratelimit(s, fmt, args...) \ + __fat_fs_error(s, __ratelimit(&MSDOS_SB(s)->ratelimit), fmt , ## args) extern int fat_clusters_flush(struct super_block *sb); extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster); extern void fat_time_fat2unix(struct msdos_sb_info *sbi, struct timespec *ts, diff --git a/fs/fat/inode.c b/fs/fat/inode.c index c611818..ed33904 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -1250,6 +1250,8 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, sb->s_op = &fat_sops; sb->s_export_op = &fat_export_ops; sbi->dir_ops = fs_dir_inode_ops; + ratelimit_state_init(&sbi->ratelimit, DEFAULT_RATELIMIT_INTERVAL, + DEFAULT_RATELIMIT_BURST); error = parse_options(data, isvfat, silent, &debug, &sbi->options); if (error) diff --git a/fs/fat/misc.c b/fs/fat/misc.c index d3da05f..1fa23f6 100644 --- a/fs/fat/misc.c +++ b/fs/fat/misc.c @@ -20,27 +20,29 @@ * In case the file system is remounted read-only, it can be made writable * again by remounting it. */ -void fat_fs_error(struct super_block *s, const char *fmt, ...) +void __fat_fs_error(struct super_block *s, int report, const char *fmt, ...) { struct fat_mount_options *opts = &MSDOS_SB(s)->options; va_list args; - printk(KERN_ERR "FAT: Filesystem error (dev %s)\n", s->s_id); + if (report) { + printk(KERN_ERR "FAT: Filesystem error (dev %s)\n", s->s_id); - printk(KERN_ERR " "); - va_start(args, fmt); - vprintk(fmt, args); - va_end(args); - printk("\n"); + printk(KERN_ERR " "); + va_start(args, fmt); + vprintk(fmt, args); + va_end(args); + printk("\n"); + } if (opts->errors == FAT_ERRORS_PANIC) - panic(" FAT fs panic from previous error\n"); + panic("FAT: fs panic from previous error\n"); else if (opts->errors == FAT_ERRORS_RO && !(s->s_flags & MS_RDONLY)) { s->s_flags |= MS_RDONLY; - printk(KERN_ERR " File system has been set read-only\n"); + printk(KERN_ERR "FAT: Filesystem has been set read-only\n"); } } -EXPORT_SYMBOL_GPL(fat_fs_error); +EXPORT_SYMBOL_GPL(__fat_fs_error); /* Flushes the number of free clusters on FAT32 */ /* XXX: Need to write one per FSINFO block. Currently only writes 1 */ |
