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(parent: 9a45022) | patch
btrfs: avoid monopolizing a core when activating a swap file
authorFilipe Manana <fdmanana@suse.com>
Mon, 9 Dec 2024 16:43:44 +0000 (16:43 +0000)
committerDavid Sterba <dsterba@suse.com>
Mon, 23 Dec 2024 21:04:48 +0000 (22:04 +0100)
commit2c8507c63f5498d4ee4af404a8e44ceae4345056
tree264ae7e3961d048c4a7a05b9e2a7bdc7bdc2fbf7tree
parent9a45022a0efadd99bcc58f7f1cc2b6fb3b808c40commit | diff
btrfs: avoid monopolizing a core when activating a swap file

During swap activation we iterate over the extents of a file and we can
have many thousands of them, so we can end up in a busy loop monopolizing
a core. Avoid this by doing a voluntary reschedule after processing each
extent.

CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/inode.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)