This patch enables injecting sit entry. print_raw_sit_entry_info() is
added to show values of the sit entry.
The meanings of options are:
* sit: means sit entry is injected, its argument chooses which sit pack
to be injected, where 0 means the current valid sit is choosen
automatically.
* blk: is the block address of the sit entry.
The members could be injected in cp contains:
* vblocks: sit entry vblocks
* valid_map: sit entry valid_map
* mtime: sit entry mtime
Reviewed-by: Chao Yu <c...@kernel.org>
Signed-off-by: Sheng Yong <shengy...@oppo.com>
---
fsck/inject.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++++++
fsck/inject.h | 2 +
fsck/main.c | 1 +
3 files changed, 136 insertions(+)
diff --git a/fsck/inject.c b/fsck/inject.c
index b6f5c59..5799353 100644
--- a/fsck/inject.c
+++ b/fsck/inject.c
@@ -22,6 +22,27 @@ static void print_raw_nat_entry_info(struct f2fs_nat_entry
*ne)
DISP_u32(ne, block_addr);
}
+static void print_raw_sit_entry_info(struct f2fs_sit_entry *se)
+{
+ int i;
+
+ if (!c.dbg_lv)
+ return;
+
+ DISP_u16(se, vblocks);
+ if (c.layout)
+ printf("%-30s ", "valid_map:");
+ else
+ printf("%-30s\t\t[", "valid_map");
+ for (i = 0; i < SIT_VBLOCK_MAP_SIZE; i++)
+ printf("%02x", se->valid_map[i]);
+ if (c.layout)
+ printf("\n");
+ else
+ printf("]\n");
+ DISP_u64(se, mtime);
+}
+
void inject_usage(void)
{
MSG(0, "\nUsage: inject.f2fs [options] device\n");
@@ -33,9 +54,11 @@ void inject_usage(void)
MSG(0, " --str <new string> new string to set\n");
MSG(0, " --idx <slot index> which slot is injected in an array\n");
MSG(0, " --nid <nid> which nid is injected\n");
+ MSG(0, " --blk <blkaddr> which blkaddr is injected\n");
MSG(0, " --sb <0|1|2> --mb <name> [--idx <index>] --val/str
<value/string> inject superblock\n");
MSG(0, " --cp <0|1|2> --mb <name> [--idx <index>] --val <value> inject
checkpoint\n");
MSG(0, " --nat <0|1|2> --mb <name> --nid <nid> --val <value> inject
nat entry\n");
+ MSG(0, " --sit <0|1|2> --mb <name> --blk <blk> [--idx <index>] --val
<value> inject sit entry\n");
MSG(0, " --dry-run do not really inject\n");
exit(1);
@@ -84,6 +107,19 @@ static void inject_nat_usage(void)
MSG(0, " block_addr: inject nat entry block_addr\n");
}
+static void inject_sit_usage(void)
+{
+ MSG(0, "inject.f2fs --sit <0|1|2> --mb <name> --blk <blk> [--idx
<index>] --val <value> inject sit entry\n");
+ MSG(0, "[sit]:\n");
+ MSG(0, " 0: auto select the current sit pack\n");
+ MSG(0, " 1: select the first sit pack\n");
+ MSG(0, " 2: select the second sit pack\n");
+ MSG(0, "[mb]:\n");
+ MSG(0, " vblocks: inject sit entry vblocks\n");
+ MSG(0, " valid_map: inject sit entry valid_map\n");
+ MSG(0, " mtime: inject sit entry mtime\n");
+}
+
int inject_parse_options(int argc, char *argv[], struct inject_option *opt)
{
int o = 0;
@@ -100,6 +136,8 @@ int inject_parse_options(int argc, char *argv[], struct
inject_option *opt)
{"cp", required_argument, 0, 7},
{"nat", required_argument, 0, 8},
{"nid", required_argument, 0, 9},
+ {"sit", required_argument, 0, 10},
+ {"blk", required_argument, 0, 11},
{0, 0, 0, 0}
};
@@ -165,6 +203,21 @@ int inject_parse_options(int argc, char *argv[], struct
inject_option *opt)
return -ERANGE;
MSG(0, "Info: inject nid %u : 0x%x\n", opt->nid,
opt->nid);
break;
+ case 10:
+ if (!is_digits(optarg))
+ return EWRONG_OPT;
+ opt->sit = atoi(optarg);
+ if (opt->sit < 0 || opt->sit > 2)
+ return -ERANGE;
+ MSG(0, "Info: inject sit pack %s\n", pack[opt->sit]);
+ break;
+ case 11:
+ opt->blk = strtol(optarg, &endptr, 0);
+ if (opt->blk == LONG_MAX || opt->blk == LONG_MIN ||
+ *endptr != '\0')
+ return -ERANGE;
+ MSG(0, "Info: inject blkaddr %u : 0x%x\n", opt->blk,
opt->blk);
+ break;
case 'd':
if (optarg[0] == '-' || !is_digits(optarg))
return EWRONG_OPT;
@@ -185,6 +238,9 @@ int inject_parse_options(int argc, char *argv[], struct
inject_option *opt)
} else if (opt->nat >= 0) {
inject_nat_usage();
exit(0);
+ } else if (opt->sit >= 0) {
+ inject_sit_usage();
+ exit(0);
}
return EUNKNOWN_OPT;
}
@@ -435,6 +491,81 @@ static int inject_nat(struct f2fs_sb_info *sbi, struct
inject_option *opt)
return ret;
}
+static int inject_sit(struct f2fs_sb_info *sbi, struct inject_option *opt)
+{
+ struct sit_info *sit_i = SIT_I(sbi);
+ struct f2fs_sit_block *sit_blk;
+ struct f2fs_sit_entry *sit;
+ unsigned int segno, offs;
+ bool is_set;
+
+ if (!f2fs_is_valid_blkaddr(sbi, opt->blk, DATA_GENERIC)) {
+ ERR_MSG("Invalid blkaddr 0x%x (valid range [0x%x:0x%lx])\n",
+ opt->blk, SM_I(sbi)->main_blkaddr,
+ (unsigned
long)le64_to_cpu(F2FS_RAW_SUPER(sbi)->block_count));
+ return -EINVAL;
+ }
+
+ sit_blk = calloc(F2FS_BLKSIZE, 1);
+ ASSERT(sit_blk);
+
+ segno = GET_SEGNO(sbi, opt->blk);
+ /* change SIT version bitmap temporarily to select specified pack */
+ is_set = f2fs_test_bit(segno, sit_i->sit_bitmap);
+ if (opt->sit == 0) {
+ opt->sit = is_set ? 2 : 1;
+ } else {
+ if (opt->sit == 1)
+ f2fs_clear_bit(segno, sit_i->sit_bitmap);
+ else
+ f2fs_set_bit(segno, sit_i->sit_bitmap);
+ }
+ get_current_sit_page(sbi, segno, sit_blk);
+ offs = SIT_ENTRY_OFFSET(sit_i, segno);
+ sit = &sit_blk->entries[offs];
+
+ if (!strcmp(opt->mb, "vblocks")) {
+ MSG(0, "Info: inject sit entry vblocks of block 0x%x "
+ "in pack %d: %u -> %u\n", opt->blk, opt->sit,
+ le16_to_cpu(sit->vblocks), (u16)opt->val);
+ sit->vblocks = cpu_to_le16((u16)opt->val);
+ } else if (!strcmp(opt->mb, "valid_map")) {
+ if (opt->idx == -1) {
+ MSG(0, "Info: auto idx = %u\n", offs);
+ opt->idx = offs;
+ }
+ if (opt->idx >= SIT_VBLOCK_MAP_SIZE) {
+ ERR_MSG("invalid idx %u of valid_map[]\n", opt->idx);
+ free(sit_blk);
+ return -ERANGE;
+ }
+ MSG(0, "Info: inject sit entry valid_map[%d] of block 0x%x "
+ "in pack %d: 0x%02x -> 0x%02x\n", opt->idx, opt->blk,
+ opt->sit, sit->valid_map[opt->idx], (u8)opt->val);
+ sit->valid_map[opt->idx] = (u8)opt->val;
+ } else if (!strcmp(opt->mb, "mtime")) {
+ MSG(0, "Info: inject sit entry mtime of block 0x%x "
+ "in pack %d: %lu -> %lu\n", opt->blk, opt->sit,
+ le64_to_cpu(sit->mtime), (u64)opt->val);
+ sit->mtime = cpu_to_le64((u64)opt->val);
+ } else {
+ ERR_MSG("unknown or unsupported member \"%s\"\n", opt->mb);
+ free(sit_blk);
+ return -EINVAL;
+ }
+ print_raw_sit_entry_info(sit);
+
+ rewrite_current_sit_page(sbi, segno, sit_blk);
+ /* restore SIT version bitmap */
+ if (is_set)
+ f2fs_set_bit(segno, sit_i->sit_bitmap);
+ else
+ f2fs_clear_bit(segno, sit_i->sit_bitmap);
+
+ free(sit_blk);
+ return 0;
+}
+
int do_inject(struct f2fs_sb_info *sbi)
{
struct inject_option *opt = (struct inject_option *)c.private;
@@ -446,6 +577,8 @@ int do_inject(struct f2fs_sb_info *sbi)
ret = inject_cp(sbi, opt);
else if (opt->nat >= 0)
ret = inject_nat(sbi, opt);
+ else if (opt->sit >= 0)
+ ret = inject_sit(sbi, opt);
return ret;
}
diff --git a/fsck/inject.h b/fsck/inject.h
index db45fb9..ece4915 100644
--- a/fsck/inject.h
+++ b/fsck/inject.h
@@ -25,9 +25,11 @@ struct inject_option {
long long val; /* new value */
char *str; /* new string */
nid_t nid;
+ block_t blk;
int sb; /* which sb */
int cp; /* which cp */
int nat; /* which nat pack */
+ int sit; /* which sit pack */
};
void inject_usage(void);
diff --git a/fsck/main.c b/fsck/main.c
index 8527199..bfdb5ba 100644
--- a/fsck/main.c
+++ b/fsck/main.c
@@ -826,6 +826,7 @@ void f2fs_parse_options(int argc, char *argv[])
.sb = -1,
.cp = -1,
.nat = -1,
+ .sit = -1,
.idx = -1,
.nid = -1,
};
--
2.40.1
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
