From: Greg Kroah-Hartman gregkh@linuxfoundation.org
This reverts commit 1ed1eef0551bebee8e56973ccd0900e3578edfb7 which is commit 131294c35ed6f777bd4e79d42af13b5c41bf2775 upstream.
Eric writes: I recommend not backporting this patch or the other three patches apparently intended to support it to 4.19 stable. All these patches are related to ext4's bigalloc feature, which was experimental as of 4.19 (expressly noted by contemporary versions of e2fsprogs) and also suffered from a number of bugs. A significant number of additional patches that were applied to 5.X kernels over time would have to be backported to 4.19 for the patch below to function correctly. It's really not worth doing that given bigalloc's experimental status as of 4.19 and the very rare combination of the bigalloc and inline features.
Link: https://lore.kernel.org/r/Y8mAe1SlcLD5fykg@debian-BULLSEYE-live-builder-AMD6... Cc: Eric Whitney enwlinux@gmail.com Cc: Theodore Ts'o tytso@mit.edu Cc: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/extents.c | 8 -------- 1 file changed, 8 deletions(-)
--- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -5984,14 +5984,6 @@ int ext4_clu_mapped(struct inode *inode, struct ext4_extent *extent; ext4_lblk_t first_lblk, first_lclu, last_lclu;
- /* - * if data can be stored inline, the logical cluster isn't - * mapped - no physical clusters have been allocated, and the - * file has no extents - */ - if (ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)) - return 0; - /* search for the extent closest to the first block in the cluster */ path = ext4_find_extent(inode, EXT4_C2B(sbi, lclu), NULL, 0); if (IS_ERR(path)) {