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| author | Chao Yu <chao@kernel.org> | 2024-02-26 10:35:38 +0300 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2024-03-27 01:17:25 +0300 |
| commit | d98b5634cd1cb19b894884cfcbed78ace72fbe5d (patch) | |
| tree | 6dee6b23d3bfe17c3bf751ddf19659f57b1e3e92 /fs/f2fs/compress.c | |
| parent | 7be4f583d11f0ea682efbf2b6e75b094ca3248d8 (diff) | |
| download | linux-d98b5634cd1cb19b894884cfcbed78ace72fbe5d.tar.xz | |
f2fs: ro: compress: fix to avoid caching unaligned extent
[ Upstream commit 4b99ecd304290c4ef55666a62c89dfb2dbf0b2cd ]
Mapping info from dump.f2fs:
i_addr[0x2d] cluster flag [0xfffffffe : 4294967294]
i_addr[0x2e] [0x 10428 : 66600]
i_addr[0x2f] [0x 10429 : 66601]
i_addr[0x30] [0x 1042a : 66602]
f2fs_io fiemap 37 1 /mnt/f2fs/disk-58390c8c.raw
Previsouly, it missed to align fofs and ofs_in_node to cluster_size,
result in adding incorrect read extent cache, fix it.
Before:
f2fs_update_read_extent_tree_range: dev = (253,48), ino = 5, pgofs = 37, len = 4, blkaddr = 66600, c_len = 3
After:
f2fs_update_read_extent_tree_range: dev = (253,48), ino = 5, pgofs = 36, len = 4, blkaddr = 66600, c_len = 3
Fixes: 94afd6d6e525 ("f2fs: extent cache: support unaligned extent")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/f2fs/compress.c')
| -rw-r--r-- | fs/f2fs/compress.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index ff26b49c0d71..15f330d8fdb9 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -1817,16 +1817,18 @@ void f2fs_put_page_dic(struct page *page, bool in_task) * check whether cluster blocks are contiguous, and add extent cache entry * only if cluster blocks are logically and physically contiguous. */ -unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) +unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn, + unsigned int ofs_in_node) { - bool compressed = f2fs_data_blkaddr(dn) == COMPRESS_ADDR; + bool compressed = data_blkaddr(dn->inode, dn->node_page, + ofs_in_node) == COMPRESS_ADDR; int i = compressed ? 1 : 0; block_t first_blkaddr = data_blkaddr(dn->inode, dn->node_page, - dn->ofs_in_node + i); + ofs_in_node + i); for (i += 1; i < F2FS_I(dn->inode)->i_cluster_size; i++) { block_t blkaddr = data_blkaddr(dn->inode, dn->node_page, - dn->ofs_in_node + i); + ofs_in_node + i); if (!__is_valid_data_blkaddr(blkaddr)) break; |