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nilfs2: add nilfs_set_error 

This function marks error state and write it on super blocks.  This is
a preparation for making super block writeback alternately.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Ryusuke Konishi 2010-06-28 17:49:30 +09:00
parent 7ecaa46cfe
commit c8a11c8a14
1 changed files with 14 additions and 10 deletions
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24
fs/nilfs2/super.c
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@ -74,6 +74,19 @@ struct kmem_cache *nilfs_btree_path_cache;
static int nilfs_remount(struct super_block *sb, int *flags, char *data);
static void nilfs_set_error(struct nilfs_sb_info *sbi)
{
struct the_nilfs *nilfs = sbi->s_nilfs;
down_write(&nilfs->ns_sem);
if (!(nilfs->ns_mount_state & NILFS_ERROR_FS)) {
nilfs->ns_mount_state |= NILFS_ERROR_FS;
nilfs->ns_sbp[0]->s_state |= cpu_to_le16(NILFS_ERROR_FS);
nilfs_commit_super(sbi, 1);
}
up_write(&nilfs->ns_sem);
}
/**
* nilfs_error() - report failure condition on a filesystem
*
@ -99,16 +112,7 @@ void nilfs_error(struct super_block *sb, const char *function,
va_end(args);
if (!(sb->s_flags & MS_RDONLY)) {
struct the_nilfs *nilfs = sbi->s_nilfs;
down_write(&nilfs->ns_sem);
if (!(nilfs->ns_mount_state & NILFS_ERROR_FS)) {
nilfs->ns_mount_state |= NILFS_ERROR_FS;
nilfs->ns_sbp[0]->s_state |=
cpu_to_le16(NILFS_ERROR_FS);
nilfs_commit_super(sbi, 1);
}
up_write(&nilfs->ns_sem);
nilfs_set_error(sbi);
if (nilfs_test_opt(sbi, ERRORS_RO)) {
printk(KERN_CRIT "Remounting filesystem read-only\n");