summaryrefslogtreecommitdiffstats
path: root/fs/btrfs/super.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/btrfs/super.c')
-rw-r--r--fs/btrfs/super.c81
1 files changed, 57 insertions, 24 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 0eb9a4da069..f2eb24c477a 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -100,10 +100,6 @@ static void __save_error_info(struct btrfs_fs_info *fs_info)
fs_info->fs_state = BTRFS_SUPER_FLAG_ERROR;
}
-/* NOTE:
- * We move write_super stuff at umount in order to avoid deadlock
- * for umount hold all lock.
- */
static void save_error_info(struct btrfs_fs_info *fs_info)
{
__save_error_info(fs_info);
@@ -125,6 +121,7 @@ static void btrfs_handle_error(struct btrfs_fs_info *fs_info)
}
}
+#ifdef CONFIG_PRINTK
/*
* __btrfs_std_error decodes expected errors from the caller and
* invokes the approciate error response.
@@ -167,7 +164,7 @@ void __btrfs_std_error(struct btrfs_fs_info *fs_info, const char *function,
va_end(args);
}
-const char *logtypes[] = {
+static const char * const logtypes[] = {
"emergency",
"alert",
"critical",
@@ -185,22 +182,50 @@ void btrfs_printk(struct btrfs_fs_info *fs_info, const char *fmt, ...)
struct va_format vaf;
va_list args;
const char *type = logtypes[4];
+ int kern_level;
va_start(args, fmt);
- if (fmt[0] == '<' && isdigit(fmt[1]) && fmt[2] == '>') {
- memcpy(lvl, fmt, 3);
- lvl[3] = '\0';
- fmt += 3;
- type = logtypes[fmt[1] - '0'];
+ kern_level = printk_get_level(fmt);
+ if (kern_level) {
+ size_t size = printk_skip_level(fmt) - fmt;
+ memcpy(lvl, fmt, size);
+ lvl[size] = '\0';
+ fmt += size;
+ type = logtypes[kern_level - '0'];
} else
*lvl = '\0';
vaf.fmt = fmt;
vaf.va = &args;
+
printk("%sBTRFS %s (device %s): %pV", lvl, type, sb->s_id, &vaf);
+
+ va_end(args);
}
+#else
+
+void __btrfs_std_error(struct btrfs_fs_info *fs_info, const char *function,
+ unsigned int line, int errno, const char *fmt, ...)
+{
+ struct super_block *sb = fs_info->sb;
+
+ /*
+ * 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;
+
+ /* 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);
+ }
+}
+#endif
+
/*
* We only mark the transaction aborted and then set the file system read-only.
* This will prevent new transactions from starting or trying to join this
@@ -396,15 +421,23 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
strcmp(args[0].from, "zlib") == 0) {
compress_type = "zlib";
info->compress_type = BTRFS_COMPRESS_ZLIB;
+ btrfs_set_opt(info->mount_opt, COMPRESS);
} else if (strcmp(args[0].from, "lzo") == 0) {
compress_type = "lzo";
info->compress_type = BTRFS_COMPRESS_LZO;
+ btrfs_set_opt(info->mount_opt, COMPRESS);
+ btrfs_set_fs_incompat(info, COMPRESS_LZO);
+ } else if (strncmp(args[0].from, "no", 2) == 0) {
+ compress_type = "no";
+ info->compress_type = BTRFS_COMPRESS_NONE;
+ btrfs_clear_opt(info->mount_opt, COMPRESS);
+ btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS);
+ compress_force = false;
} else {
ret = -EINVAL;
goto out;
}
- btrfs_set_opt(info->mount_opt, COMPRESS);
if (compress_force) {
btrfs_set_opt(info->mount_opt, FORCE_COMPRESS);
pr_info("btrfs: force %s compression\n",
@@ -1068,7 +1101,8 @@ static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
}
bdev = fs_devices->latest_bdev;
- s = sget(fs_type, btrfs_test_super, btrfs_set_super, fs_info);
+ s = sget(fs_type, btrfs_test_super, btrfs_set_super, flags | MS_NOSEC,
+ fs_info);
if (IS_ERR(s)) {
error = PTR_ERR(s);
goto error_close_devices;
@@ -1082,7 +1116,6 @@ static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
} else {
char b[BDEVNAME_SIZE];
- s->s_flags = flags | MS_NOSEC;
strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id));
btrfs_sb(s)->bdev_holder = fs_type;
error = btrfs_fill_super(s, fs_devices, data,
@@ -1187,6 +1220,10 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
if (ret)
goto restore;
+ ret = btrfs_resume_balance_async(fs_info);
+ if (ret)
+ goto restore;
+
sb->s_flags &= ~MS_RDONLY;
}
@@ -1451,6 +1488,13 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
ret = btrfs_scan_one_device(vol->name, FMODE_READ,
&btrfs_fs_type, &fs_devices);
break;
+ case BTRFS_IOC_DEVICES_READY:
+ ret = btrfs_scan_one_device(vol->name, FMODE_READ,
+ &btrfs_fs_type, &fs_devices);
+ if (ret)
+ break;
+ ret = !(fs_devices->num_devices == fs_devices->total_devices);
+ break;
}
kfree(vol);
@@ -1473,16 +1517,6 @@ static int btrfs_unfreeze(struct super_block *sb)
return 0;
}
-static void btrfs_fs_dirty_inode(struct inode *inode, int flags)
-{
- int ret;
-
- ret = btrfs_dirty_inode(inode);
- if (ret)
- printk_ratelimited(KERN_ERR "btrfs: fail to dirty inode %Lu "
- "error %d\n", btrfs_ino(inode), ret);
-}
-
static int btrfs_show_devname(struct seq_file *m, struct dentry *root)
{
struct btrfs_fs_info *fs_info = btrfs_sb(root->d_sb);
@@ -1522,7 +1556,6 @@ static const struct super_operations btrfs_super_ops = {
.show_options = btrfs_show_options,
.show_devname = btrfs_show_devname,
.write_inode = btrfs_write_inode,
- .dirty_inode = btrfs_fs_dirty_inode,
.alloc_inode = btrfs_alloc_inode,
.destroy_inode = btrfs_destroy_inode,
.statfs = btrfs_statfs,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-01 06:22:17 +0000