#include <linux/export.h>
#include <linux/slab.h>
-#include <linux/acct.h>
#include <linux/blkdev.h>
#include <linux/mount.h>
#include <linux/security.h>
lockdep_set_class(&s->s_vfs_rename_mutex, &type->s_vfs_rename_key);
mutex_init(&s->s_dquot.dqio_mutex);
mutex_init(&s->s_dquot.dqonoff_mutex);
- init_rwsem(&s->s_dquot.dqptr_sem);
s->s_maxbytes = MAX_NON_LFS;
s->s_op = &default_op;
s->s_time_gran = 1000000000;
return -EACCES;
#endif
- if (flags & MS_RDONLY)
- acct_auto_close(sb);
- shrink_dcache_sb(sb);
-
remount_ro = (flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY);
+ if (remount_ro) {
+ if (sb->s_pins.first) {
+ up_write(&sb->s_umount);
+ sb_pin_kill(sb);
+ down_write(&sb->s_umount);
+ if (!sb->s_root)
+ return 0;
+ if (sb->s_writers.frozen != SB_UNFROZEN)
+ return -EBUSY;
+ remount_ro = (flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY);
+ }
+ }
+ shrink_dcache_sb(sb);
+
/* If we are remounting RDONLY and current sb is read/write,
make sure there are no rw files opened */
if (remount_ro) {