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fuse: check fallocate mode

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Don't allow new fallocate modes until we figure out what (if anything) that
takes.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
This commit is contained in:
Miklos Szeredi 2014-04-28 14:19:21 +02:00
parent 7736e8cc51
commit 4adb83029d
1 changed files with 3 additions and 0 deletions
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3
fs/fuse/file.c
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@ -2972,6 +2972,9 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
bool lock_inode = !(mode & FALLOC_FL_KEEP_SIZE) || bool lock_inode = !(mode & FALLOC_FL_KEEP_SIZE) ||
(mode & FALLOC_FL_PUNCH_HOLE); (mode & FALLOC_FL_PUNCH_HOLE);
if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
return -EOPNOTSUPP;
if (fc->no_fallocate) if (fc->no_fallocate)
return -EOPNOTSUPP; return -EOPNOTSUPP;