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tmpfs: fix SEEK_DATA/SEEK_HOLE regression

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Commit 46a1c2c7ae ("vfs: export lseek_execute() to modules") broke the
tmpfs SEEK_DATA/SEEK_HOLE implementation, because vfs_setpos() converts
the carefully prepared -ENXIO to -EINVAL.  Other filesystems avoid it in
error cases: do the same in tmpfs.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Jie Liu <jeff.liu@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hugh Dickins 2013-08-04 11:30:25 -07:00 committed by Linus Torvalds
parent 2f85399115
commit 387aae6fdd
1 changed files with 2 additions and 1 deletions
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3
mm/shmem.c
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@ -1798,7 +1798,8 @@ static loff_t shmem_file_llseek(struct file *file, loff_t offset, int whence)
}
}
offset = vfs_setpos(file, offset, MAX_LFS_FILESIZE);
if (offset >= 0)
offset = vfs_setpos(file, offset, MAX_LFS_FILESIZE);
mutex_unlock(&inode->i_mutex);
return offset;
}