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authorYangtao Li <frank.li@vivo.com>2023-04-07 21:31:47 +0300
committerJaegeuk Kim <jaegeuk@kernel.org>2023-06-26 16:07:09 +0300
commit698a5c8c8e05590d92629ad5796a421e14218e20 (patch)
treea3d29a455e4ee5400fa842db3cbed9e19642d299 /fs/f2fs/inode.c
parent00e120b5e4b5638cf19eee96d4332f2d100746ba (diff)
downloadlinux-698a5c8c8e05590d92629ad5796a421e14218e20.tar.xz
f2fs: add sanity compress level check for compressed file
Commit 3fde13f817e2 ("f2fs: compress: support compress level") forgot to do basic compress level check, let's add it. Signed-off-by: Yangtao Li <frank.li@vivo.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/inode.c')
-rw-r--r--fs/f2fs/inode.c107
1 files changed, 78 insertions, 29 deletions
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index cf4327ad106c..bb6c3733d104 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -10,6 +10,8 @@
#include <linux/buffer_head.h>
#include <linux/writeback.h>
#include <linux/sched/mm.h>
+#include <linux/lz4.h>
+#include <linux/zstd.h>
#include "f2fs.h"
#include "node.h"
@@ -202,6 +204,80 @@ void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
}
+static bool sanity_check_compress_inode(struct inode *inode,
+ struct f2fs_inode *ri)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ unsigned char clevel;
+
+ if (ri->i_compress_algorithm >= COMPRESS_MAX) {
+ f2fs_warn(sbi,
+ "%s: inode (ino=%lx) has unsupported compress algorithm: %u, run fsck to fix",
+ __func__, inode->i_ino, ri->i_compress_algorithm);
+ goto err;
+ }
+ if (le64_to_cpu(ri->i_compr_blocks) >
+ SECTOR_TO_BLOCK(inode->i_blocks)) {
+ f2fs_warn(sbi,
+ "%s: inode (ino=%lx) has inconsistent i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix",
+ __func__, inode->i_ino, le64_to_cpu(ri->i_compr_blocks),
+ SECTOR_TO_BLOCK(inode->i_blocks));
+ goto err;
+ }
+ if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
+ ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) {
+ f2fs_warn(sbi,
+ "%s: inode (ino=%lx) has unsupported log cluster size: %u, run fsck to fix",
+ __func__, inode->i_ino, ri->i_log_cluster_size);
+ goto err;
+ }
+
+ clevel = le16_to_cpu(ri->i_compress_flag) >>
+ COMPRESS_LEVEL_OFFSET;
+ switch (ri->i_compress_algorithm) {
+ case COMPRESS_LZO:
+#ifdef CONFIG_F2FS_FS_LZO
+ if (clevel)
+ goto err_level;
+#endif
+ break;
+ case COMPRESS_LZORLE:
+#ifdef CONFIG_F2FS_FS_LZORLE
+ if (clevel)
+ goto err_level;
+#endif
+ break;
+ case COMPRESS_LZ4:
+#ifdef CONFIG_F2FS_FS_LZ4
+#ifdef CONFIG_F2FS_FS_LZ4HC
+ if (clevel &&
+ (clevel < LZ4HC_MIN_CLEVEL || clevel > LZ4HC_MAX_CLEVEL))
+ goto err_level;
+#else
+ if (clevel)
+ goto err_level;
+#endif
+#endif
+ break;
+ case COMPRESS_ZSTD:
+#ifdef CONFIG_F2FS_FS_ZSTD
+ if (clevel < zstd_min_clevel() || clevel > zstd_max_clevel())
+ goto err_level;
+#endif
+ break;
+ default:
+ goto err_level;
+ }
+
+ return true;
+err_level:
+ f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported compress level: %u, run fsck to fix",
+ __func__, inode->i_ino, clevel);
+err:
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ return false;
+}
+
static bool sanity_check_inode(struct inode *inode, struct page *node_page)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@ -286,35 +362,8 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
fi->i_flags & F2FS_COMPR_FL &&
F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
- i_log_cluster_size)) {
- if (ri->i_compress_algorithm >= COMPRESS_MAX) {
- set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
- "compress algorithm: %u, run fsck to fix",
- __func__, inode->i_ino,
- ri->i_compress_algorithm);
- return false;
- }
- if (le64_to_cpu(ri->i_compr_blocks) >
- SECTOR_TO_BLOCK(inode->i_blocks)) {
- set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_warn(sbi, "%s: inode (ino=%lx) has inconsistent "
- "i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix",
- __func__, inode->i_ino,
- le64_to_cpu(ri->i_compr_blocks),
- SECTOR_TO_BLOCK(inode->i_blocks));
- return false;
- }
- if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
- ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) {
- set_sbi_flag(sbi, SBI_NEED_FSCK);
- f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
- "log cluster size: %u, run fsck to fix",
- __func__, inode->i_ino,
- ri->i_log_cluster_size);
- return false;
- }
- }
+ i_log_cluster_size))
+ return sanity_check_compress_inode(inode, ri);
return true;
}