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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-17 11:18:00 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-17 11:18:00 -0800
commitff49c86f27e4726a86f5034543e6e684daf41955 (patch)
tree6b7ee8712cba9439677a6fdb20df2b8468d65280 /fs/f2fs/super.c
parentb97d4c424e362ebf88fd9aa1b7ad82e3a28c26d3 (diff)
parent75e91c888989cf2df5c78b251b07de1f5052e30e (diff)
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Merge tag 'f2fs-for-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim: "In this round, we've made more work into per-file compression support. For example, F2FS_IOC_GET | SET_COMPRESS_OPTION provides a way to change the algorithm or cluster size per file. F2FS_IOC_COMPRESS | DECOMPRESS_FILE provides a way to compress and decompress the existing normal files manually. There is also a new mount option, compress_mode=fs|user, which can control who compresses the data. Chao also added a checksum feature with a mount option so that we are able to detect any corrupted cluster. In addition, Daniel contributed casefolding with encryption patch, which will be used for Android devices. Summary: Enhancements: - add ioctls and mount option to manage per-file compression feature - support casefolding with encryption - support checksum for compressed cluster - avoid IO starvation by replacing mutex with rwsem - add sysfs, max_io_bytes, to control max bio size Bug fixes: - fix use-after-free issue when compression and fsverity are enabled - fix consistency corruption during fault injection test - fix data offset for lseek - get rid of buffer_head which has 32bits limit in fiemap - fix some bugs in multi-partitions support - fix nat entry count calculation in shrinker - fix some stat information And, we've refactored some logics and fix minor bugs as well" * tag 'f2fs-for-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (36 commits) f2fs: compress: fix compression chksum f2fs: fix shift-out-of-bounds in sanity_check_raw_super() f2fs: fix race of pending_pages in decompression f2fs: fix to account inline xattr correctly during recovery f2fs: inline: fix wrong inline inode stat f2fs: inline: correct comment in f2fs_recover_inline_data f2fs: don't check PAGE_SIZE again in sanity_check_raw_super() f2fs: convert to F2FS_*_INO macro f2fs: introduce max_io_bytes, a sysfs entry, to limit bio size f2fs: don't allow any writes on readonly mount f2fs: avoid race condition for shrinker count f2fs: add F2FS_IOC_DECOMPRESS_FILE and F2FS_IOC_COMPRESS_FILE f2fs: add compress_mode mount option f2fs: Remove unnecessary unlikely() f2fs: init dirty_secmap incorrectly f2fs: remove buffer_head which has 32bits limit f2fs: fix wrong block count instead of bytes f2fs: use new conversion functions between blks and bytes f2fs: rename logical_to_blk and blk_to_logical f2fs: fix kbytes written stat for multi-device case ...
Diffstat (limited to 'fs/f2fs/super.c')
-rw-r--r--fs/f2fs/super.c68
1 files changed, 42 insertions, 26 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index af9f449da64b..b4a07fe62d1a 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -146,6 +146,8 @@ enum {
Opt_compress_algorithm,
Opt_compress_log_size,
Opt_compress_extension,
+ Opt_compress_chksum,
+ Opt_compress_mode,
Opt_atgc,
Opt_err,
};
@@ -214,6 +216,8 @@ static match_table_t f2fs_tokens = {
{Opt_compress_algorithm, "compress_algorithm=%s"},
{Opt_compress_log_size, "compress_log_size=%u"},
{Opt_compress_extension, "compress_extension=%s"},
+ {Opt_compress_chksum, "compress_chksum"},
+ {Opt_compress_mode, "compress_mode=%s"},
{Opt_atgc, "atgc"},
{Opt_err, NULL},
};
@@ -934,10 +938,29 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
F2FS_OPTION(sbi).compress_ext_cnt++;
kfree(name);
break;
+ case Opt_compress_chksum:
+ F2FS_OPTION(sbi).compress_chksum = true;
+ break;
+ case Opt_compress_mode:
+ name = match_strdup(&args[0]);
+ if (!name)
+ return -ENOMEM;
+ if (!strcmp(name, "fs")) {
+ F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
+ } else if (!strcmp(name, "user")) {
+ F2FS_OPTION(sbi).compress_mode = COMPR_MODE_USER;
+ } else {
+ kfree(name);
+ return -EINVAL;
+ }
+ kfree(name);
+ break;
#else
case Opt_compress_algorithm:
case Opt_compress_log_size:
case Opt_compress_extension:
+ case Opt_compress_chksum:
+ case Opt_compress_mode:
f2fs_info(sbi, "compression options not supported");
break;
#endif
@@ -1523,6 +1546,14 @@ static inline void f2fs_show_compress_options(struct seq_file *seq,
seq_printf(seq, ",compress_extension=%s",
F2FS_OPTION(sbi).extensions[i]);
}
+
+ if (F2FS_OPTION(sbi).compress_chksum)
+ seq_puts(seq, ",compress_chksum");
+
+ if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_FS)
+ seq_printf(seq, ",compress_mode=%s", "fs");
+ else if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER)
+ seq_printf(seq, ",compress_mode=%s", "user");
}
static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
@@ -1672,6 +1703,7 @@ static void default_options(struct f2fs_sb_info *sbi)
F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
F2FS_OPTION(sbi).compress_ext_cnt = 0;
+ F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
sbi->sb->s_flags &= ~SB_INLINECRYPT;
@@ -1904,7 +1936,6 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
if (*flags & SB_RDONLY ||
F2FS_OPTION(sbi).whint_mode != org_mount_opt.whint_mode) {
- writeback_inodes_sb(sb, WB_REASON_SYNC);
sync_inodes_sb(sb);
set_sbi_flag(sbi, SBI_IS_DIRTY);
@@ -2744,7 +2775,6 @@ static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
block_t total_sections, blocks_per_seg;
struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
(bh->b_data + F2FS_SUPER_OFFSET);
- unsigned int blocksize;
size_t crc_offset = 0;
__u32 crc = 0;
@@ -2770,18 +2800,11 @@ static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
}
}
- /* Currently, support only 4KB page cache size */
- if (F2FS_BLKSIZE != PAGE_SIZE) {
- f2fs_info(sbi, "Invalid page_cache_size (%lu), supports only 4KB",
- PAGE_SIZE);
- return -EFSCORRUPTED;
- }
-
/* Currently, support only 4KB block size */
- blocksize = 1 << le32_to_cpu(raw_super->log_blocksize);
- if (blocksize != F2FS_BLKSIZE) {
- f2fs_info(sbi, "Invalid blocksize (%u), supports only 4KB",
- blocksize);
+ if (le32_to_cpu(raw_super->log_blocksize) != F2FS_BLKSIZE_BITS) {
+ f2fs_info(sbi, "Invalid log_blocksize (%u), supports only %u",
+ le32_to_cpu(raw_super->log_blocksize),
+ F2FS_BLKSIZE_BITS);
return -EFSCORRUPTED;
}
@@ -3071,9 +3094,9 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
sbi->total_node_count =
(le32_to_cpu(raw_super->segment_count_nat) / 2)
* sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK;
- sbi->root_ino_num = le32_to_cpu(raw_super->root_ino);
- sbi->node_ino_num = le32_to_cpu(raw_super->node_ino);
- sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino);
+ F2FS_ROOT_INO(sbi) = le32_to_cpu(raw_super->root_ino);
+ F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino);
+ F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino);
sbi->cur_victim_sec = NULL_SECNO;
sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
@@ -3399,12 +3422,6 @@ static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
struct unicode_map *encoding;
__u16 encoding_flags;
- if (f2fs_sb_has_encrypt(sbi)) {
- f2fs_err(sbi,
- "Can't mount with encoding and encryption");
- return -EINVAL;
- }
-
if (f2fs_sb_read_encoding(sbi->raw_super, &encoding_info,
&encoding_flags)) {
f2fs_err(sbi,
@@ -3427,7 +3444,6 @@ static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
sbi->sb->s_encoding = encoding;
sbi->sb->s_encoding_flags = encoding_flags;
- sbi->sb->s_d_op = &f2fs_dentry_ops;
}
#else
if (f2fs_sb_has_casefold(sbi)) {
@@ -3559,7 +3575,7 @@ try_onemore:
sbi->valid_super_block = valid_super_block;
init_rwsem(&sbi->gc_lock);
mutex_init(&sbi->writepages);
- mutex_init(&sbi->cp_mutex);
+ init_rwsem(&sbi->cp_global_sem);
init_rwsem(&sbi->node_write);
init_rwsem(&sbi->node_change);
@@ -3700,8 +3716,7 @@ try_onemore:
}
/* For write statistics */
- sbi->sectors_written_start =
- (u64)part_stat_read(sb->s_bdev, sectors[STAT_WRITE]);
+ sbi->sectors_written_start = f2fs_get_sectors_written(sbi);
/* Read accumulated write IO statistics if exists */
seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE);
@@ -3916,6 +3931,7 @@ free_bio_info:
#ifdef CONFIG_UNICODE
utf8_unload(sb->s_encoding);
+ sb->s_encoding = NULL;
#endif
free_options:
#ifdef CONFIG_QUOTA