kernel/git/stable/linux.git/fs/btrfs/send.c, branch master

btrfs: switch local indicator variables to bools

2026-06-09T16:22:46+00:00

For all local indicator variables do simple switch to bool, done on all files. Signed-off-by: David Sterba

btrfs: send: pass bool for pending_move and refs_processed parameters

2026-06-09T16:22:45+00:00

We're passing simple indicators as int, switch them to bool types. Signed-off-by: David Sterba

btrfs: send: switch struct fs_path to auto freeing

2026-06-09T16:22:44+00:00

The fs_path can use the auto freeing pattern and it's completely contained in send. Define the freeing wrapper and add the cleanup attributes. Almost all conversions are straightforward, replacing goto with direct return. Signed-off-by: David Sterba

btrfs: pass literal booleans to functions that take boolean arguments

2026-04-07T16:55:56+00:00

We have several functions with parameters defined as booleans but then we have callers passing integers, 0 or 1, instead of false and true. While this isn't a bug since 0 and 1 are converted to false and true, it is odd and less readable. Change the callers to pass true and false literals instead. Signed-off-by: Filipe Manana Reviewed-by: David Sterba Signed-off-by: David Sterba

Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses

2026-02-22T16:26:33+00:00

Conversion performed via this Coccinelle script: // SPDX-License-Identifier: GPL-2.0-only // Options: --include-headers-for-types --all-includes --include-headers --keep-comments virtual patch @gfp depends on patch && !(file in "tools") && !(file in "samples")@ identifier ALLOC = {kmalloc_obj,kmalloc_objs,kmalloc_flex, kzalloc_obj,kzalloc_objs,kzalloc_flex, kvmalloc_obj,kvmalloc_objs,kvmalloc_flex, kvzalloc_obj,kvzalloc_objs,kvzalloc_flex}; @@ ALLOC(... - , GFP_KERNEL ) $ make coccicheck MODE=patch COCCI=gfp.cocci Build and boot tested x86_64 with Fedora 42's GCC and Clang: Linux version 6.19.0+ (user@host) (gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7), GNU ld version 2.44-12.fc42) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Linux version 6.19.0+ (user@host) (clang version 20.1.8 (Fedora 20.1.8-4.fc42), LLD 20.1.8) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Signed-off-by: Kees Cook 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

btrfs: remove pointless out labels from send.c

2026-02-03T06:56:20+00:00

Some functions (process_extent(), process_recorded_refs_if_needed(), changed_inode(), compare_refs() and changed_cb()) have an 'out' label that does nothing but return, making it pointless. Simplify this by removing the label and returning instead of gotos plus setting the 'ret' variable. Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Reviewed-by: David Sterba Signed-off-by: David Sterba

Merge tag 'for-6.19-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

2026-01-18T03:29:32+00:00

Pull btrfs fixes from David Sterba: - with large folios in use, fix partial incorrect update of a reflinked range - fix potential deadlock in iget when lookup fails and eviction is needed - in send, validate inline extent type while detecting file holes - fix memory leak after an error when creating a space info - remove zone statistics from sysfs again, the output size limitations make it unusable, we'll do it in another way in another release - test fixes: - return proper error codes from block remapping tests - fix tree root leaks in qgroup tests after errors * tag 'for-6.19-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: remove zoned statistics from sysfs btrfs: fix memory leaks in create_space_info() error paths btrfs: invalidate pages instead of truncate after reflinking btrfs: update the Kconfig string for CONFIG_BTRFS_EXPERIMENTAL btrfs: send: check for inline extents in range_is_hole_in_parent() btrfs: tests: fix return 0 on rmap test failure btrfs: tests: fix root tree leak in btrfs_test_qgroups() btrfs: release path before iget_failed() in btrfs_read_locked_inode()

btrfs: send: check for inline extents in range_is_hole_in_parent()

2026-01-09T16:41:53+00:00

Before accessing the disk_bytenr field of a file extent item we need to check if we are dealing with an inline extent. This is because for inline extents their data starts at the offset of the disk_bytenr field. So accessing the disk_bytenr means we are accessing inline data or in case the inline data is less than 8 bytes we can actually cause an invalid memory access if this inline extent item is the first item in the leaf or access metadata from other items. Fixes: 82bfb2e7b645 ("Btrfs: incremental send, fix unnecessary hole writes for sparse files") Reviewed-by: Filipe Manana Signed-off-by: Qu Wenruo Reviewed-by: David Sterba Signed-off-by: David Sterba