From: Konstantin Komarov almaz.alexandrovich@paragon-software.com
commit 114346978cf61de02832cc3cc68432a3de70fb38 upstream.
We must check size before trying to allocate. Size can be set for example by "ulimit -f". Fixes xfstest generic/228 Fixes: 4342306f0f0d ("fs/ntfs3: Add file operations and implementation")
Reviewed-by: Kari Argillander kari.argillander@gmail.com Signed-off-by: Konstantin Komarov almaz.alexandrovich@paragon-software.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ntfs3/file.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
--- a/fs/ntfs3/file.c +++ b/fs/ntfs3/file.c @@ -661,7 +661,13 @@ static long ntfs_fallocate(struct file * /* * Normal file: Allocate clusters, do not change 'valid' size. */ - err = ntfs_set_size(inode, max(end, i_size)); + loff_t new_size = max(end, i_size); + + err = inode_newsize_ok(inode, new_size); + if (err) + goto out; + + err = ntfs_set_size(inode, new_size); if (err) goto out;