This is a note to let you know that I've just added the patch titled
udf: Truncate added extents on failed expansion
to the 5.10-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-truncate-added-extents-on-failed-expansion.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 70bfb3a8d661d4fdc742afc061b88a7f3fc9f500 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@xxxxxxx>
Date: Thu, 15 Dec 2022 14:24:03 +0100
Subject: udf: Truncate added extents on failed expansion
From: Jan Kara <jack@xxxxxxx>
commit 70bfb3a8d661d4fdc742afc061b88a7f3fc9f500 upstream.
When a file expansion failed because we didn't have enough space for
indirect extents make sure we truncate extents created so far so that we
don't leave extents beyond EOF.
CC: stable@xxxxxxxxxxxxxxx
Signed-off-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/udf/inode.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -525,8 +525,10 @@ static int udf_do_extend_file(struct ino
}
if (fake) {
- udf_add_aext(inode, last_pos, &last_ext->extLocation,
- last_ext->extLength, 1);
+ err = udf_add_aext(inode, last_pos, &last_ext->extLocation,
+ last_ext->extLength, 1);
+ if (err < 0)
+ goto out_err;
count++;
} else {
struct kernel_lb_addr tmploc;
@@ -560,7 +562,7 @@ static int udf_do_extend_file(struct ino
err = udf_add_aext(inode, last_pos, &last_ext->extLocation,
last_ext->extLength, 1);
if (err)
- return err;
+ goto out_err;
count++;
}
if (new_block_bytes) {
@@ -569,7 +571,7 @@ static int udf_do_extend_file(struct ino
err = udf_add_aext(inode, last_pos, &last_ext->extLocation,
last_ext->extLength, 1);
if (err)
- return err;
+ goto out_err;
count++;
}
@@ -583,6 +585,11 @@ out:
return -EIO;
return count;
+out_err:
+ /* Remove extents we've created so far */
+ udf_clear_extent_cache(inode);
+ udf_truncate_extents(inode);
+ return err;
}
/* Extend the final block of the file to final_block_len bytes */
Patches currently in stable-queue which might be from jack@xxxxxxx are
queue-5.10/udf-fix-file-corruption-when-appending-just-after-end-of-preallocated-extent.patch
queue-5.10/udf-do-not-update-file-length-for-failed-writes-to-inline-files.patch
queue-5.10/udf-truncate-added-extents-on-failed-expansion.patch
queue-5.10/udf-detect-system-inodes-linked-into-directory-hierarchy.patch
queue-5.10/udf-do-not-bother-merging-very-long-extents.patch
queue-5.10/udf-define-efscorrupted-error-code.patch
queue-5.10/udf-preserve-link-count-of-system-files.patch
