ext4: Allocate mapping_metadata_bhs struct on demand

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Currently every ext4 inode gets mapping_metadata_bhs struct although it
is only needed when running without a journal and only for inodes where
any metadata was dirtied. Allocate mapping_metadata_bhs struct on demand
when dirtying the first metadata buffer for the inode.

Acked-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260727104923.3828017-24-jack@suse.cz
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

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Jan Kara 2026-07-27 12:49:22 +02:00 • committed by Christian Brauner

parent 5a499dad2c

commit daca0f43a9

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5 changed files with 55 additions and 16 deletions

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13

fs/ext4/ext4.h

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25

fs/ext4/ext4_jbd2.c

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12

fs/ext4/fsync.c

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12

fs/ext4/inode.c

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9

fs/ext4/super.c

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