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ext2: avoid unnecessary operation in ext2_error()

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If filesystem has already mounted as read-only, then we don't have
to do it again.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Chengguang Xu 2018-11-07 21:47:04 +08:00 • committed by Jan Kara
parent b00d209241
commit c0ed7b51ca
1 changed files with 1 additions and 1 deletions
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2
fs/ext2/super.c
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@ -73,7 +73,7 @@ void ext2_error(struct super_block *sb, const char *function,
if (test_opt(sb, ERRORS_PANIC))
panic("EXT2-fs: panic from previous error\n");
if (test_opt(sb, ERRORS_RO)) {
if (!sb_rdonly(sb) && test_opt(sb, ERRORS_RO)) {
ext2_msg(sb, KERN_CRIT,
"error: remounting filesystem read-only");
sb->s_flags |= SB_RDONLY;