kernel/linux.git/fs/ext2/super.c, branch v7.1-rc5

Merge tag 'fs_for_v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2026-04-16T02:22:16+00:00

Pull ext2, udf, quota updates from Jan Kara: - A fix for a race in quota code that can expose ocfs2 to use-after-free issues - UDF fix to avoid memory corruption in face of corrupted format - Couple of ext2 fixes for better handling of fs corruption - Some more various code cleanups in UDF & ext2 * tag 'fs_for_v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: ext2: reject inodes with zero i_nlink and valid mode in ext2_iget() ext2: use get_random_u32() where appropriate quota: Fix race of dquot_scan_active() with quota deactivation udf: fix partition descriptor append bookkeeping ext2: avoid drop_nlink() during unlink of zero-nlink inode in ext2_unlink() ext2: guard reservation window dump with EXT2FS_DEBUG ext2: replace BUG_ON with WARN_ON_ONCE in ext2_get_blocks ext2: remove stale TODO about kmap fs: udf: avoid assignment in condition when selecting allocation goal

ext2: use get_random_u32() where appropriate

2026-04-07T11:19:53+00:00

Use the typed random integer helpers instead of get_random_bytes() when filling a single integer variable. The helpers return the value directly, require no pointer or size argument, and better express intent. Signed-off-by: David Carlier Link: https://patch.msgid.link/20260405154717.4705-1-devnexen@gmail.com Signed-off-by: Jan Kara

ext2: Track metadata bhs in fs-private inode part

2026-03-26T14:03:31+00:00

Track metadata bhs for an inode in fs-private part of the inode. Signed-off-by: Jan Kara Link: https://patch.msgid.link/20260326095354.16340-76-jack@suse.cz Signed-off-by: Christian Brauner

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-22T04:03:00+00:00

This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

ext2: Deprecate DAX

2025-04-29T11:08:20+00:00

Since PMEM didn't quite lift off, DAX isn't as widely used as we originally hoped. Thus it doesn't seem warranted to support implementation of DAX in ext2 driver when the same filesystem can be accessed through ext4 driver as a "simple implementation". Just deprecate DAX support in ext2 targetting completely dropping the code at the end of 2025. Link: https://lore.kernel.org/all/uiu7rcmtooxgbscaiiim7czqsca52bgrt6aiszsafq7jj4n3e7@ge6mfzcmnorl Signed-off-by: Jan Kara

ext2: Make ext2_params_spec static

2025-02-26T17:00:24+00:00

It isn't used outside of fs/ext2/super.c. Reported-by: kernel test robot Fixes: eab61d3260d7 ("ext2: convert to the new mount API") Signed-off-by: Jan Kara

ext2: create ext2_msg_fc for use during parsing

2025-02-24T16:03:25+00:00

Rather than send a NULL sb to ext2_msg, which omits the s_id from messages, create a new ext2_msg_fc which is able to provide this information from the filesystem context *fc when parsing. Signed-off-by: Eric Sandeen Signed-off-by: Jan Kara Link: https://patch.msgid.link/20250223201014.7541-3-sandeen@redhat.com

ext2: convert to the new mount API

2025-02-24T16:02:37+00:00

Convert ext2 to the new mount API. Note that this makes the sb= option more accepting than it was before; previosly, sb= was only accepted if it was the first specified option. Now it can exist anywhere, and if respecified, the last specified value is used. Parse-time messages here are sent to ext2_msg with a NULL sb, and ext2_msg is adjusted to accept that, as ext4 does today as well. Signed-off-by: Eric Sandeen Signed-off-by: Jan Kara Link: https://patch.msgid.link/20250223201014.7541-2-sandeen@redhat.com