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fuse: llseek fix race

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Fix race between lseek(fd, 0, SEEK_CUR) and read/write.  This was fixed in
generic code by commit 5b6f1eb97d (vfs: lseek(fd, 0, SEEK_CUR) race condition).

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
This commit is contained in:
Miklos Szeredi 2011-12-13 11:40:59 +01:00
parent b48c6af208
commit 73104b6e37
1 changed files with 4 additions and 0 deletions
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4
fs/fuse/file.c
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@ -1567,6 +1567,10 @@ static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
offset += i_size_read(inode);
break;
case SEEK_CUR:
if (offset == 0) {
retval = file->f_pos;
goto exit;
}
offset += file->f_pos;
break;
case SEEK_DATA: