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vfs: fix check for fallocate on active swapfile

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Fix the broken check for calling sys_fallocate() on an active swapfile,
introduced by commit 0790b31b69 ("fs: disallow all fallocate
operation on active swapfile").

Signed-off-by: Eric Biggers <ebiggers3@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Eric Biggers 2014-06-24 23:45:08 -05:00 committed by Al Viro
parent af43647277
commit 6d2b6170c8
1 changed files with 2 additions and 3 deletions
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5
fs/open.c
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@ -263,11 +263,10 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
return -EPERM; return -EPERM;
/* /*
* We can not allow to do any fallocate operation on an active * We cannot allow any fallocate operation on an active swapfile
* swapfile
*/ */
if (IS_SWAPFILE(inode)) if (IS_SWAPFILE(inode))
ret = -ETXTBSY; return -ETXTBSY;
/* /*
* Revalidate the write permissions, in case security policy has * Revalidate the write permissions, in case security policy has