btrfs: disable defrag on pre-content watched files

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We queue up inodes to be defrag'ed asynchronously, which means we do not
have their original file for readahead.  This means that the code to
skip readahead on pre-content watched files will not run, and we could
potentially read in empty pages.

Handle this corner case by disabling defrag on files that are currently
being watched for pre-content events.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/4cc5bcea13db7904174353d08e85157356282a59.1731684329.git.josef@toxicpanda.com

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Josef Bacik 2024-11-15 10:30:31 -05:00 • committed by Jan Kara

parent 7f4796a465

commit b722e40be2

1 changed files with 9 additions and 0 deletions

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fs/btrfs/ioctl.c

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