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acct_on(): don't mess with freeze protection

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What happens there is that we are replacing file->path.mnt of
a file we'd just opened with a clone and we need the write
count contribution to be transferred from original mount to
new one.  That's it.  We do *NOT* want any kind of freeze
protection for the duration of switchover.

IOW, we should just use __mnt_{want,drop}_write() for that
switchover; no need to bother with mnt_{want,drop}_write()
there.

Tested-by: Amir Goldstein <[email protected]>
Reported-by: [email protected]
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2019-04-04 21:04:13 -04:00
commit 9419a3191d
3 changed files with 4 additions and 4 deletions
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2
fs/internal.h
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@ -89,9 +89,7 @@ extern int sb_prepare_remount_readonly(struct super_block *);
extern void __init mnt_init(void);
extern int __mnt_want_write(struct vfsmount *);
extern int __mnt_want_write_file(struct file *);
extern void __mnt_drop_write(struct vfsmount *);
extern void __mnt_drop_write_file(struct file *);
/*