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| author | Filipe Manana <[email protected]> | 2025-02-15 11:04:15 +0000 |
|---|---|---|
| committer | David Sterba <[email protected]> | 2025-02-21 08:32:07 +0000 |
| commit | c6c9c4d56483d941f567eb921434c25fc6086dfa (patch) | |
| tree | 4bab4bc4c6182f29e2075e1cd0e34aff382b6987 /net/switchdev/switchdev.c | |
| parent | btrfs: fix use-after-free on inode when scanning root during em shrinking (diff) | |
| download | kernel-c6c9c4d56483d941f567eb921434c25fc6086dfa.tar.gz kernel-c6c9c4d56483d941f567eb921434c25fc6086dfa.zip | |
btrfs: skip inodes without loaded extent maps when shrinking extent maps
If there are inodes that don't have any loaded extent maps, we end up
grabbing a reference on them and later adding a delayed iput, which wakes
up the cleaner and makes it do unnecessary work. This is common when for
example the inodes were open only to run stat(2) or all their extent maps
were already released through the folio release callback
(btrfs_release_folio()) or released by a previous run of the shrinker, or
directories which never have extent maps.
Reported-by: Ivan Shapovalov <[email protected]>
Tested-by: Ivan Shapovalov <[email protected]>
Link: https://lore.kernel.org/linux-btrfs/[email protected]/
CC: [email protected] # 6.13+
Reviewed-by: Johannes Thumshirn <[email protected]>
Reviewed-by: Qu Wenruo <[email protected]>
Signed-off-by: Filipe Manana <[email protected]>
Signed-off-by: David Sterba <[email protected]>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions