diff options
Diffstat (limited to 'fs/exfat/super.c')
| -rw-r--r-- | fs/exfat/super.c | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/fs/exfat/super.c b/fs/exfat/super.c index 323ecebe6f0e..bd57844414aa 100644 --- a/fs/exfat/super.c +++ b/fs/exfat/super.c @@ -46,6 +46,9 @@ static int exfat_sync_fs(struct super_block *sb, int wait) struct exfat_sb_info *sbi = EXFAT_SB(sb); int err = 0; + if (unlikely(exfat_forced_shutdown(sb))) + return 0; + if (!wait) return 0; @@ -167,6 +170,41 @@ static int exfat_show_options(struct seq_file *m, struct dentry *root) return 0; } +int exfat_force_shutdown(struct super_block *sb, u32 flags) +{ + int ret; + struct exfat_sb_info *sbi = sb->s_fs_info; + struct exfat_mount_options *opts = &sbi->options; + + if (exfat_forced_shutdown(sb)) + return 0; + + switch (flags) { + case EXFAT_GOING_DOWN_DEFAULT: + case EXFAT_GOING_DOWN_FULLSYNC: + ret = bdev_freeze(sb->s_bdev); + if (ret) + return ret; + bdev_thaw(sb->s_bdev); + set_bit(EXFAT_FLAGS_SHUTDOWN, &sbi->s_exfat_flags); + break; + case EXFAT_GOING_DOWN_NOSYNC: + set_bit(EXFAT_FLAGS_SHUTDOWN, &sbi->s_exfat_flags); + break; + default: + return -EINVAL; + } + + if (opts->discard) + opts->discard = 0; + return 0; +} + +static void exfat_shutdown(struct super_block *sb) +{ + exfat_force_shutdown(sb, EXFAT_GOING_DOWN_NOSYNC); +} + static struct inode *exfat_alloc_inode(struct super_block *sb) { struct exfat_inode_info *ei; @@ -193,6 +231,7 @@ static const struct super_operations exfat_sops = { .sync_fs = exfat_sync_fs, .statfs = exfat_statfs, .show_options = exfat_show_options, + .shutdown = exfat_shutdown, }; enum { @@ -370,8 +409,6 @@ static int exfat_read_root(struct inode *inode) inode->i_blocks = round_up(i_size_read(inode), sbi->cluster_size) >> 9; ei->i_pos = ((loff_t)sbi->root_dir << 32) | 0xffffffff; - ei->i_size_aligned = i_size_read(inode); - ei->i_size_ondisk = i_size_read(inode); exfat_save_attr(inode, EXFAT_ATTR_SUBDIR); ei->i_crtime = simple_inode_init_ts(inode); |