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ext4: only call sync_filesystm() when remounting read-only

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This is the only time it is required for ext4.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o 2014-03-13 22:49:42 -04:00
parent 02b9984d64
commit 38c03b3439
1 changed files with 3 additions and 2 deletions
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5
fs/ext4/super.c
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@ -4765,8 +4765,6 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
#endif
char *orig_data = kstrdup(data, GFP_KERNEL);
sync_filesystem(sb);
/* Store the original options */
old_sb_flags = sb->s_flags;
old_opts.s_mount_opt = sbi->s_mount_opt;
@ -4837,6 +4835,9 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
}
if (*flags & MS_RDONLY) {
err = sync_filesystem(sb);
if (err < 0)
goto restore_opts;
err = dquot_suspend(sb, -1);
if (err < 0)
goto restore_opts;