Commit 78188dd1 authored by pangliyuan's avatar pangliyuan Committed by Andrew Morton
Browse files

Squashfs: don't allocate fragment caches more than fragments 

Sometimes the actual number of fragments in image is between
0 and SQUASHFS_CACHED_FRAGMENTS, which cause additional
fragment caches to be allocated.

Sets the number of fragment caches to the minimum of fragments
and SQUASHFS_CACHED_FRAGMENTS.

Link: https://lkml.kernel.org/r/20241210090842.160853-1-pangliyuan1@huawei.com


Signed-off-by: default avatarpangliyuan <pangliyuan1@huawei.com>
Reviewed-by: default avatarPhillip Lougher <phillip@squashfs.org.uk>
Cc: <wangfangpeng1@huawei.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 0fafc9e1

fs/squashfs/super.c

+1 −1
Original line number Diff line number Diff line
@@ -405,7 +405,7 @@ static int squashfs_fill_super(struct super_block *sb, struct fs_context *fc) 
		goto check_directory_table;



	msblk->fragment_cache = squashfs_cache_init("fragment",

		SQUASHFS_CACHED_FRAGMENTS, msblk->block_size);

		min(SQUASHFS_CACHED_FRAGMENTS, fragments), msblk->block_size);

	if (msblk->fragment_cache == NULL) {

		err = -ENOMEM;

		goto failed_mount;