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vfs: prevent remount read-only if pending removes

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If there are any inodes on the super block that have been unlinked
(i_nlink == 0) but have not yet been deleted then prevent the
remounting the super block read-only.

Reported-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Miklos Szeredi 2011-11-21 12:11:33 +01:00 • committed by Al Viro
parent 7ada4db886
commit 8e8b87964b
4 changed files with 7 additions and 29 deletions
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2
include/linux/fs.h
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@ -2150,8 +2150,6 @@ extern const struct file_operations read_pipefifo_fops;
extern const struct file_operations write_pipefifo_fops;
extern const struct file_operations rdwr_pipefifo_fops;
extern int fs_may_remount_ro(struct super_block *);
#ifdef CONFIG_BLOCK
/*
* return READ, READA, or WRITE