Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 9c6429d9 authored by Filipe Manana's avatar Filipe Manana Committed by Chris Mason
Browse files

Btrfs: fix a comment in inode.c:evict_inode_truncate_pages() 



The comment was not correct about the part where it says the endio
callback of the bio might have not yet been called - update it
to mention that by that time the endio callback execution might
still be in progress only.

Signed-off-by: default avatarFilipe Manana <fdmanana@suse.com>
Reviewed-by: default avatarLiu Bo <bo.li.liu@oracle.com>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent 61de718f

fs/btrfs/inode.c

+3 −2
Original line number Diff line number Diff line
@@ -4989,8 +4989,9 @@ static void evict_inode_truncate_pages(struct inode *inode) 
	/*

	 * Keep looping until we have no more ranges in the io tree.

	 * We can have ongoing bios started by readpages (called from readahead)

	 * that didn't get their end io callbacks called yet or they are still

	 * in progress ((extent_io.c:end_bio_extent_readpage()). This means some

	 * that have their endio callback (extent_io.c:end_bio_extent_readpage)

	 * still in progress (unlocked the pages in the bio but did not yet

	 * unlocked the ranges in the io tree). Therefore this means some

	 * ranges can still be locked and eviction started because before

	 * submitting those bios, which are executed by a separate task (work

	 * queue kthread), inode references (inode->i_count) were not taken