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| author |   Qu Wenruo <wqu@suse.com> | 2021-12-06 13:52:57 +0800 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2022-01-07 14:18:25 +0100 |
| commit | 0bb3acdc48243c0db9fd93fc904ce81bdb4049c9 (patch) | |
| tree | e2e1930edbe7a4d8f7aef2dd421cd5bf2145b7ab /fs/btrfs/scrub.c | |
| parent | btrfs: do not check -EAGAIN when truncating inodes in the log root (diff) | |
| download | wireguard-linux-0bb3acdc48243c0db9fd93fc904ce81bdb4049c9.tar.xz wireguard-linux-0bb3acdc48243c0db9fd93fc904ce81bdb4049c9.zip | |
btrfs: update SCRUB_MAX_PAGES_PER_BLOCK
Use BTRFS_MAX_METADATA_BLOCKSIZE and SZ_4K (minimal sectorsize) to
calculate this value.
And remove one stale comment on the value, in fact with recent subpage
support, BTRFS_MAX_METADATA_BLOCKSIZE * PAGE_SIZE is already beyond
BTRFS_STRIPE_LEN, just we don't use the full page.
Also since we're here, update the BUG_ON() related to
SCRUB_MAX_PAGES_PER_BLOCK to ASSERT().
As those ASSERT() are really only for developers to catch early obvious
bugs, not to let end users suffer.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/scrub.c')
| -rw-r--r-- | fs/btrfs/scrub.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index 15a123e67108..0870d8db92cd 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -49,11 +49,10 @@ struct scrub_ctx; #define SCRUB_BIOS_PER_SCTX 64 /* 8MB per device in flight */ /* - * the following value times PAGE_SIZE needs to be large enough to match the + * The following value times PAGE_SIZE needs to be large enough to match the * largest node/leaf/sector size that shall be supported. - * Values larger than BTRFS_STRIPE_LEN are not supported. */ -#define SCRUB_MAX_PAGES_PER_BLOCK 16 /* 64k per node/leaf/sector */ +#define SCRUB_MAX_PAGES_PER_BLOCK (BTRFS_MAX_METADATA_BLOCKSIZE / SZ_4K) struct scrub_recover { refcount_t refs; @@ -1313,7 +1312,7 @@ static int scrub_setup_recheck_block(struct scrub_block *original_sblock, recover->bioc = bioc; recover->map_length = mapped_length; - BUG_ON(page_index >= SCRUB_MAX_PAGES_PER_BLOCK); + ASSERT(page_index < SCRUB_MAX_PAGES_PER_BLOCK); nmirrors = min(scrub_nr_raid_mirrors(bioc), BTRFS_MAX_MIRRORS); @@ -2297,7 +2296,7 @@ leave_nomem: scrub_block_put(sblock); return -ENOMEM; } - BUG_ON(index >= SCRUB_MAX_PAGES_PER_BLOCK); + ASSERT(index < SCRUB_MAX_PAGES_PER_BLOCK); scrub_page_get(spage); sblock->pagev[index] = spage; spage->sblock = sblock; @@ -2631,7 +2630,7 @@ leave_nomem: scrub_block_put(sblock); return -ENOMEM; } - BUG_ON(index >= SCRUB_MAX_PAGES_PER_BLOCK); + ASSERT(index < SCRUB_MAX_PAGES_PER_BLOCK); /* For scrub block */ scrub_page_get(spage); sblock->pagev[index] = spage; |