btrfs: convert ioctl handlers to AUTO_KFREE

Browse source

Many ioctl handlers are suitable for the AUTO_KFREE conversions as the
data are temporary and short lived. The conversions are trivial or the
collateral changes are straightforward.

A kfree() preceding mnt_drop_write_file() is slightly more efficient but
in the reverse order (i.e. the automatic kfree) does not cause any
significant change as the write drop does only a few simple operations.

Note: __free() handles also error pointers, so this is safe for the
memdup_user() errors too.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

...

This commit is contained in:

David Sterba 2026-04-14 23:12:31 +02:00

parent 37f1f51fba

commit b1db292ee3

1 changed files with 103 additions and 184 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

287

fs/btrfs/ioctl.c

View file