This is a note to let you know that I've just added the patch titled
udf: Do not bother looking for prealloc extents if i_lenExtents matches i_size
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
udf-do-not-bother-looking-for-prealloc-extents-if-i_lenextents-matches-i_size.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6ad53f0f71c52871202a7bf096feb2c59db33fc5 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@xxxxxxx>
Date: Wed, 7 Dec 2022 17:34:33 +0100
Subject: udf: Do not bother looking for prealloc extents if i_lenExtents matches i_size
From: Jan Kara <jack@xxxxxxx>
commit 6ad53f0f71c52871202a7bf096feb2c59db33fc5 upstream.
If rounded block-rounded i_lenExtents matches block rounded i_size,
there are no preallocation extents. Do not bother walking extent linked
list.
CC: stable@xxxxxxxxxxxxxxx
Signed-off-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/udf/truncate.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/udf/truncate.c
+++ b/fs/udf/truncate.c
@@ -127,9 +127,10 @@ void udf_discard_prealloc(struct inode *
uint64_t lbcount = 0;
int8_t etype = -1, netype;
struct udf_inode_info *iinfo = UDF_I(inode);
+ int bsize = 1 << inode->i_blkbits;
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ||
- inode->i_size == iinfo->i_lenExtents)
+ ALIGN(inode->i_size, bsize) == ALIGN(iinfo->i_lenExtents, bsize))
return;
epos.block = iinfo->i_location;
Patches currently in stable-queue which might be from jack@xxxxxxx are
queue-6.1/udf-do-not-bother-looking-for-prealloc-extents-if-i_lenextents-matches-i_size.patch
queue-6.1/udf-fix-extending-file-within-last-block.patch
queue-6.1/udf-fix-preallocation-discarding-at-indirect-extent-boundary.patch
queue-6.1/udf-discard-preallocation-before-extending-file-with-a-hole.patch
