From: Anand Jain Date: Tue, 10 Aug 2021 15:23:44 +0000 (+0800) Subject: btrfs: fix upper limit for max_inline for page size 64K X-Git-Tag: baikal/mips/sdk5.9~10113^2~5 X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=066cad67b8db;p=kernel.git btrfs: fix upper limit for max_inline for page size 64K The mount option max_inline ranges from 0 to the sectorsize (which is now equal to page size). But we parse the mount options too early and before the actual sectorsize is read from the superblock. So the upper limit of max_inline is unaware of the actual sectorsize and is limited by the temporary sectorsize 4096, even on a system where the default sectorsize is 64K. Fix this by reading the superblock sectorsize before the mount option parse. Reported-by: Alexander Tsvetkov CC: stable@vger.kernel.org # 5.4+ Signed-off-by: Anand Jain Reviewed-by: David Sterba Signed-off-by: David Sterba --- diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 2f9515dccce0b..355ea88d5c5f7 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3314,6 +3314,30 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device */ fs_info->compress_type = BTRFS_COMPRESS_ZLIB; + /* + * Flag our filesystem as having big metadata blocks if they are bigger + * than the page size. + */ + if (btrfs_super_nodesize(disk_super) > PAGE_SIZE) { + if (!(features & BTRFS_FEATURE_INCOMPAT_BIG_METADATA)) + btrfs_info(fs_info, + "flagging fs with big metadata feature"); + features |= BTRFS_FEATURE_INCOMPAT_BIG_METADATA; + } + + /* Set up fs_info before parsing mount options */ + nodesize = btrfs_super_nodesize(disk_super); + sectorsize = btrfs_super_sectorsize(disk_super); + stripesize = sectorsize; + fs_info->dirty_metadata_batch = nodesize * (1 + ilog2(nr_cpu_ids)); + fs_info->delalloc_batch = sectorsize * 512 * (1 + ilog2(nr_cpu_ids)); + + fs_info->nodesize = nodesize; + fs_info->sectorsize = sectorsize; + fs_info->sectorsize_bits = ilog2(sectorsize); + fs_info->csums_per_leaf = BTRFS_MAX_ITEM_SIZE(fs_info) / fs_info->csum_size; + fs_info->stripesize = stripesize; + ret = btrfs_parse_options(fs_info, options, sb->s_flags); if (ret) { err = ret; @@ -3340,30 +3364,6 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device if (features & BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA) btrfs_info(fs_info, "has skinny extents"); - /* - * flag our filesystem as having big metadata blocks if - * they are bigger than the page size - */ - if (btrfs_super_nodesize(disk_super) > PAGE_SIZE) { - if (!(features & BTRFS_FEATURE_INCOMPAT_BIG_METADATA)) - btrfs_info(fs_info, - "flagging fs with big metadata feature"); - features |= BTRFS_FEATURE_INCOMPAT_BIG_METADATA; - } - - nodesize = btrfs_super_nodesize(disk_super); - sectorsize = btrfs_super_sectorsize(disk_super); - stripesize = sectorsize; - fs_info->dirty_metadata_batch = nodesize * (1 + ilog2(nr_cpu_ids)); - fs_info->delalloc_batch = sectorsize * 512 * (1 + ilog2(nr_cpu_ids)); - - /* Cache block sizes */ - fs_info->nodesize = nodesize; - fs_info->sectorsize = sectorsize; - fs_info->sectorsize_bits = ilog2(sectorsize); - fs_info->csums_per_leaf = BTRFS_MAX_ITEM_SIZE(fs_info) / fs_info->csum_size; - fs_info->stripesize = stripesize; - /* * mixed block groups end up with duplicate but slightly offset * extent buffers for the same range. It leads to corruptions