diff options
| -rw-r--r-- | fs/btrfs/ctree.h | 12 | ||||
| -rw-r--r-- | fs/btrfs/super.c | 63 |
2 files changed, 66 insertions, 9 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index f6bca05a4b4c..8829f8099851 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2964,13 +2964,21 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size); /* super.c */ int btrfs_parse_options(struct btrfs_root *root, char *options); int btrfs_sync_fs(struct super_block *sb, int wait); +void btrfs_printk(struct btrfs_fs_info *fs_info, const char *fmt, ...); void __btrfs_std_error(struct btrfs_fs_info *fs_info, const char *function, - unsigned int line, int errno); + unsigned int line, int errno, const char *fmt, ...); #define btrfs_std_error(fs_info, errno) \ do { \ if ((errno)) \ - __btrfs_std_error((fs_info), __func__, __LINE__, (errno));\ + __btrfs_std_error((fs_info), __func__, \ + __LINE__, (errno), NULL); \ +} while (0) + +#define btrfs_error(fs_info, errno, fmt, args...) \ +do { \ + __btrfs_std_error((fs_info), __func__, __LINE__, \ + (errno), fmt, ##args); \ } while (0) void __btrfs_panic(struct btrfs_fs_info *fs_info, const char *function, diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index ae7963b2d527..7fe69eef7607 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -127,25 +127,74 @@ static void btrfs_handle_error(struct btrfs_fs_info *fs_info) * invokes the approciate error response. */ void __btrfs_std_error(struct btrfs_fs_info *fs_info, const char *function, - unsigned int line, int errno) + unsigned int line, int errno, const char *fmt, ...) { struct super_block *sb = fs_info->sb; char nbuf[16]; const char *errstr; + va_list args; + va_start(args, fmt); /* * Special case: if the error is EROFS, and we're already * under MS_RDONLY, then it is safe here. */ if (errno == -EROFS && (sb->s_flags & MS_RDONLY)) - return; + return; - errstr = btrfs_decode_error(fs_info, errno, nbuf); - printk(KERN_CRIT "BTRFS error (device %s) in %s:%d: %s\n", - sb->s_id, function, line, errstr); - save_error_info(fs_info); + errstr = btrfs_decode_error(fs_info, errno, nbuf); + if (fmt) { + struct va_format vaf = { + .fmt = fmt, + .va = &args, + }; + + printk(KERN_CRIT "BTRFS error (device %s) in %s:%d: %s (%pV)\n", + sb->s_id, function, line, errstr, &vaf); + } else { + printk(KERN_CRIT "BTRFS error (device %s) in %s:%d: %s\n", + sb->s_id, function, line, errstr); + } + + /* Don't go through full error handling during mount */ + if (sb->s_flags & MS_BORN) { + save_error_info(fs_info); + btrfs_handle_error(fs_info); + } + va_end(args); +} - btrfs_handle_error(fs_info); +const char *logtypes[] = { + "emergency", + "alert", + "critical", + "error", + "warning", + "notice", + "info", + "debug", +}; + +void btrfs_printk(struct btrfs_fs_info *fs_info, const char *fmt, ...) +{ + struct super_block *sb = fs_info->sb; + char lvl[4]; + struct va_format vaf; + va_list args; + const char *type = logtypes[4]; + + va_start(args, fmt); + + if (fmt[0] == '<' && isdigit(fmt[1]) && fmt[2] == '>') { + strncpy(lvl, fmt, 3); + fmt += 3; + type = logtypes[fmt[1] - '0']; + } else + *lvl = '\0'; + + vaf.fmt = fmt; + vaf.va = &args; + printk("%sBTRFS %s (device %s): %pV", lvl, type, sb->s_id, &vaf); } /* |