* [f2fs-dev] [PATCH] f2fs-tools: fix cannot get bdev information
@ 2022-06-17 2:51 Ben Chang
0 siblings, 0 replies; 4+ messages in thread
From: Ben Chang @ 2022-06-17 2:51 UTC (permalink / raw)
To: linux-f2fs-devel; +Cc: Ben Chang
Some device like android phone doesn't show the dev number path in
/dev/block/, but most of devices show in /sys/dev/block
Signed-off-by: Ben Chang <ben.chang@sonicsky.net>
---
tools/fibmap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/fibmap.c b/tools/fibmap.c
index 3238f29..9f94b53 100644
--- a/tools/fibmap.c
+++ b/tools/fibmap.c
@@ -102,7 +102,7 @@ static void stat_bdev(struct stat *st, unsigned int *start_lba)
char linkname[32] = { 0, };
int fd;
- sprintf(devname, "/dev/block/%d:%d", major(st->st_dev), minor(st->st_dev));
+ sprintf(devname, "/sys/dev/block/%d:%d", major(st->st_dev), minor(st->st_dev));
fd = open(devname, O_RDONLY);
if (fd < 0)
--
2.25.1
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
^ permalink raw reply related [flat|nested] 4+ messages in thread* [f2fs-dev] [PATCH] f2fs-tools: fix cannot get bdev information
@ 2022-06-20 3:53 Ben Chang
2022-06-21 16:39 ` Jaegeuk Kim
0 siblings, 1 reply; 4+ messages in thread
From: Ben Chang @ 2022-06-20 3:53 UTC (permalink / raw)
To: linux-f2fs-devel; +Cc: Ben Chang
Some device like android phone doesn't show the dev number path in
/dev/block/, for example:
$ ls /dev/block/
bootdevice dm-6 loop24 loop43 ram13 sda5 sdd4 sde24 sde43 sde62 sdf1
by-name dm-7 loop25 loop44 ram14 sda6 sdd5 sde25 sde44 sde63 sdf10
dm-0 dm-8 loop26 loop45 ram15 sda7 sdd6 sde26 sde45 sde64 sdf11
dm-1 dm-9 loop27 loop46 ram2 sda8 sdd7 sde27 sde46 sde65 sdf12
dm-10 loop0 loop28 loop47 ram3 sda9 sde sde28 sde47 sde66 sdf13
dm-11 loop1 loop29 loop48 ram4 sdb sde1 sde29 sde48 sde67 sdf14
dm-12 loop10 loop3 loop49 ram5 sdb1 sde10 sde3 sde49 sde68 sdf15
dm-13 loop11 loop30 loop5 ram6 sdb2 sde11 sde30 sde5 sde69 sdf16
dm-14 loop12 loop31 loop50 ram7 sdb3 sde12 sde31 sde50 sde7 sdf17
dm-15 loop13 loop32 loop51 ram8 sdb4 sde13 sde32 sde51 sde70 sdf18
dm-16 loop14 loop33 loop6 ram9 sdb5 sde14 sde33 sde52 sde71 sdf19
dm-17 loop15 loop34 loop7 sda sdc sde15 sde34 sde53 sde72 sdf2
dm-18 loop16 loop35 loop8 sda1 sdc1 sde16 sde35 sde54 sde73 sdf3
dm-19 loop17 loop36 loop9 sda10 sdc2 sde17 sde36 sde55 sde74 sdf4
dm-2 loop18 loop37 mapper sda11 sdc3 sde18 sde37 sde56 sde75 sdf5
dm-20 loop19 loop38 platform sda12 sdc4 sde19 sde38 sde57 sde76 sdf6
dm-21 loop2 loop39 ram0 sda13 sdc5 sde2 sde39 sde58 sde77 sdf7
dm-3 loop20 loop4 ram1 sda14 sdd sde20 sde4 sde59 sde78 sdf8
dm-4 loop21 loop40 ram10 sda2 sdd1 sde21 sde40 sde6 sde8 sdf9
dm-5 loop22 loop41 ram11 sda3 sdd2 sde22 sde41 sde60 sde9 vold
dm-53 loop23 loop42 ram12 sda4 sdd3 sde23 sde42 sde61 sdf zram0
this will cause stat_bdev cannot show bdev information.
But most of devices (include android) show dev number path in /sys/dev/block, for example:
$ ls /sys/dev/block
1:0 254:1 254:6 259:21 259:38 259:54 7:104 7:24 7:368 8:11 8:4 8:70 8:87
1:1 254:10 254:7 259:22 259:39 259:55 7:112 7:240 7:376 8:12 8:48 8:71 8:88
1:10 254:11 254:8 259:23 259:4 259:56 7:120 7:248 7:384 8:13 8:49 8:72 8:89
1:11 254:12 254:9 259:24 259:40 259:57 7:128 7:256 7:392 8:14 8:5 8:73 8:9
1:12 254:13 259:0 259:25 259:41 259:58 7:136 7:264 7:40 8:16 8:50 8:74 8:90
1:13 254:14 259:1 259:26 259:42 259:59 7:144 7:272 7:400 8:17 8:51 8:75 8:91
1:14 254:15 259:10 259:27 259:43 259:6 7:152 7:280 7:408 8:18 8:52 8:76 8:92
1:15 254:16 259:11 259:28 259:44 259:60 7:16 7:288 7:48 8:19 8:53 8:77 8:93
1:2 254:17 259:12 259:29 259:45 259:61 7:160 7:296 7:56 8:2 8:54 8:78 8:94
1:3 254:18 259:13 259:3 259:46 259:62 7:168 7:304 7:64 8:20 8:55 8:79 8:95
1:4 254:19 259:14 259:30 259:47 259:63 7:176 7:312 7:72 8:21 8:6 8:8
1:5 254:2 259:15 259:31 259:48 259:64 7:184 7:32 7:8 8:3 8:64 8:80
1:6 254:20 259:16 259:32 259:49 259:65 7:192 7:320 7:80 8:32 8:65 8:81
1:7 254:21 259:17 259:33 259:5 259:66 7:200 7:328 7:88 8:33 8:66 8:82
1:8 254:3 259:18 259:34 259:50 259:7 7:208 7:336 7:96 8:34 8:67 8:83
1:9 254:4 259:19 259:35 259:51 259:8 7:216 7:344 8:0 8:35 8:68 8:84
253:0 254:5 259:2 259:36 259:52 259:9 7:224 7:352 8:1 8:36 8:69 8:85
254:0 254:53 259:20 259:37 259:53 7:0 7:232 7:360 8:10 8:37 8:7 8:86
so change the access path from /dev/block to /sys/dev/block
(same method of libudev)
Before:
$./f2fs.fibmap testfile_4k
----------------file info-------------------
testfile_4k :
--------------------------------------------
dev [254:53]
ino [0x 3dda : 15834]
mode [0x 81b6 : 33206]
nlink [0x 1 : 1]
uid [0x 0 : 0]
gid [0x 0 : 0]
size [0x 40000 : 262144]
blksize [0x 1000 : 4096]
blocks [0x 200 : 512]
--------------------------------------------
file_pos start_blk end_blk blks
0 2256926 2256987 62
253952 2150337 2150338 2
Patched:
$./f2fs.fibmap testfile_4k
----------------bdev info-------------------
devname = 254:53
start_lba = 0
----------------file info-------------------
testfile_4k :
--------------------------------------------
dev [254:53]
ino [0x 3dda : 15834]
mode [0x 81b6 : 33206]
nlink [0x 1 : 1]
uid [0x 0 : 0]
gid [0x 0 : 0]
size [0x 40000 : 262144]
blksize [0x 1000 : 4096]
blocks [0x 200 : 512]
--------------------------------------------
file_pos start_blk end_blk blks
0 2256926 2256987 62
253952 2150337 2150338 2
Signed-off-by: Ben Chang <ben.chang@sonicsky.net>
---
tools/fibmap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/fibmap.c b/tools/fibmap.c
index 3238f29..9f94b53 100644
--- a/tools/fibmap.c
+++ b/tools/fibmap.c
@@ -102,7 +102,7 @@ static void stat_bdev(struct stat *st, unsigned int *start_lba)
char linkname[32] = { 0, };
int fd;
- sprintf(devname, "/dev/block/%d:%d", major(st->st_dev), minor(st->st_dev));
+ sprintf(devname, "/sys/dev/block/%d:%d", major(st->st_dev), minor(st->st_dev));
fd = open(devname, O_RDONLY);
if (fd < 0)
--
2.25.1
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [f2fs-dev] [PATCH] f2fs-tools: fix cannot get bdev information
2022-06-20 3:53 Ben Chang
@ 2022-06-21 16:39 ` Jaegeuk Kim
2022-06-22 13:02 ` Chao Yu
0 siblings, 1 reply; 4+ messages in thread
From: Jaegeuk Kim @ 2022-06-21 16:39 UTC (permalink / raw)
To: Ben Chang; +Cc: linux-f2fs-devel
Thanks, applied.
On 06/20, Ben Chang wrote:
> Some device like android phone doesn't show the dev number path in
> /dev/block/, for example:
>
> $ ls /dev/block/
> bootdevice dm-6 loop24 loop43 ram13 sda5 sdd4 sde24 sde43 sde62 sdf1
> by-name dm-7 loop25 loop44 ram14 sda6 sdd5 sde25 sde44 sde63 sdf10
> dm-0 dm-8 loop26 loop45 ram15 sda7 sdd6 sde26 sde45 sde64 sdf11
> dm-1 dm-9 loop27 loop46 ram2 sda8 sdd7 sde27 sde46 sde65 sdf12
> dm-10 loop0 loop28 loop47 ram3 sda9 sde sde28 sde47 sde66 sdf13
> dm-11 loop1 loop29 loop48 ram4 sdb sde1 sde29 sde48 sde67 sdf14
> dm-12 loop10 loop3 loop49 ram5 sdb1 sde10 sde3 sde49 sde68 sdf15
> dm-13 loop11 loop30 loop5 ram6 sdb2 sde11 sde30 sde5 sde69 sdf16
> dm-14 loop12 loop31 loop50 ram7 sdb3 sde12 sde31 sde50 sde7 sdf17
> dm-15 loop13 loop32 loop51 ram8 sdb4 sde13 sde32 sde51 sde70 sdf18
> dm-16 loop14 loop33 loop6 ram9 sdb5 sde14 sde33 sde52 sde71 sdf19
> dm-17 loop15 loop34 loop7 sda sdc sde15 sde34 sde53 sde72 sdf2
> dm-18 loop16 loop35 loop8 sda1 sdc1 sde16 sde35 sde54 sde73 sdf3
> dm-19 loop17 loop36 loop9 sda10 sdc2 sde17 sde36 sde55 sde74 sdf4
> dm-2 loop18 loop37 mapper sda11 sdc3 sde18 sde37 sde56 sde75 sdf5
> dm-20 loop19 loop38 platform sda12 sdc4 sde19 sde38 sde57 sde76 sdf6
> dm-21 loop2 loop39 ram0 sda13 sdc5 sde2 sde39 sde58 sde77 sdf7
> dm-3 loop20 loop4 ram1 sda14 sdd sde20 sde4 sde59 sde78 sdf8
> dm-4 loop21 loop40 ram10 sda2 sdd1 sde21 sde40 sde6 sde8 sdf9
> dm-5 loop22 loop41 ram11 sda3 sdd2 sde22 sde41 sde60 sde9 vold
> dm-53 loop23 loop42 ram12 sda4 sdd3 sde23 sde42 sde61 sdf zram0
>
> this will cause stat_bdev cannot show bdev information.
>
> But most of devices (include android) show dev number path in /sys/dev/block, for example:
>
> $ ls /sys/dev/block
> 1:0 254:1 254:6 259:21 259:38 259:54 7:104 7:24 7:368 8:11 8:4 8:70 8:87
> 1:1 254:10 254:7 259:22 259:39 259:55 7:112 7:240 7:376 8:12 8:48 8:71 8:88
> 1:10 254:11 254:8 259:23 259:4 259:56 7:120 7:248 7:384 8:13 8:49 8:72 8:89
> 1:11 254:12 254:9 259:24 259:40 259:57 7:128 7:256 7:392 8:14 8:5 8:73 8:9
> 1:12 254:13 259:0 259:25 259:41 259:58 7:136 7:264 7:40 8:16 8:50 8:74 8:90
> 1:13 254:14 259:1 259:26 259:42 259:59 7:144 7:272 7:400 8:17 8:51 8:75 8:91
> 1:14 254:15 259:10 259:27 259:43 259:6 7:152 7:280 7:408 8:18 8:52 8:76 8:92
> 1:15 254:16 259:11 259:28 259:44 259:60 7:16 7:288 7:48 8:19 8:53 8:77 8:93
> 1:2 254:17 259:12 259:29 259:45 259:61 7:160 7:296 7:56 8:2 8:54 8:78 8:94
> 1:3 254:18 259:13 259:3 259:46 259:62 7:168 7:304 7:64 8:20 8:55 8:79 8:95
> 1:4 254:19 259:14 259:30 259:47 259:63 7:176 7:312 7:72 8:21 8:6 8:8
> 1:5 254:2 259:15 259:31 259:48 259:64 7:184 7:32 7:8 8:3 8:64 8:80
> 1:6 254:20 259:16 259:32 259:49 259:65 7:192 7:320 7:80 8:32 8:65 8:81
> 1:7 254:21 259:17 259:33 259:5 259:66 7:200 7:328 7:88 8:33 8:66 8:82
> 1:8 254:3 259:18 259:34 259:50 259:7 7:208 7:336 7:96 8:34 8:67 8:83
> 1:9 254:4 259:19 259:35 259:51 259:8 7:216 7:344 8:0 8:35 8:68 8:84
> 253:0 254:5 259:2 259:36 259:52 259:9 7:224 7:352 8:1 8:36 8:69 8:85
> 254:0 254:53 259:20 259:37 259:53 7:0 7:232 7:360 8:10 8:37 8:7 8:86
>
> so change the access path from /dev/block to /sys/dev/block
> (same method of libudev)
>
> Before:
>
> $./f2fs.fibmap testfile_4k
>
> ----------------file info-------------------
> testfile_4k :
> --------------------------------------------
> dev [254:53]
> ino [0x 3dda : 15834]
> mode [0x 81b6 : 33206]
> nlink [0x 1 : 1]
> uid [0x 0 : 0]
> gid [0x 0 : 0]
> size [0x 40000 : 262144]
> blksize [0x 1000 : 4096]
> blocks [0x 200 : 512]
> --------------------------------------------
>
> file_pos start_blk end_blk blks
> 0 2256926 2256987 62
> 253952 2150337 2150338 2
>
> Patched:
> $./f2fs.fibmap testfile_4k
> ----------------bdev info-------------------
> devname = 254:53
> start_lba = 0
>
> ----------------file info-------------------
> testfile_4k :
> --------------------------------------------
> dev [254:53]
> ino [0x 3dda : 15834]
> mode [0x 81b6 : 33206]
> nlink [0x 1 : 1]
> uid [0x 0 : 0]
> gid [0x 0 : 0]
> size [0x 40000 : 262144]
> blksize [0x 1000 : 4096]
> blocks [0x 200 : 512]
> --------------------------------------------
>
> file_pos start_blk end_blk blks
> 0 2256926 2256987 62
> 253952 2150337 2150338 2
>
> Signed-off-by: Ben Chang <ben.chang@sonicsky.net>
> ---
> tools/fibmap.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/fibmap.c b/tools/fibmap.c
> index 3238f29..9f94b53 100644
> --- a/tools/fibmap.c
> +++ b/tools/fibmap.c
> @@ -102,7 +102,7 @@ static void stat_bdev(struct stat *st, unsigned int *start_lba)
> char linkname[32] = { 0, };
> int fd;
>
> - sprintf(devname, "/dev/block/%d:%d", major(st->st_dev), minor(st->st_dev));
> + sprintf(devname, "/sys/dev/block/%d:%d", major(st->st_dev), minor(st->st_dev));
>
> fd = open(devname, O_RDONLY);
> if (fd < 0)
> --
> 2.25.1
>
>
>
> _______________________________________________
> Linux-f2fs-devel mailing list
> Linux-f2fs-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [f2fs-dev] [PATCH] f2fs-tools: fix cannot get bdev information
2022-06-21 16:39 ` Jaegeuk Kim
@ 2022-06-22 13:02 ` Chao Yu
0 siblings, 0 replies; 4+ messages in thread
From: Chao Yu @ 2022-06-22 13:02 UTC (permalink / raw)
To: Ben Chang; +Cc: Jaegeuk Kim, linux-f2fs-devel
On 2022/6/22 0:39, Jaegeuk Kim wrote:
> Thanks, applied.
>
> On 06/20, Ben Chang wrote:
>> Some device like android phone doesn't show the dev number path in
>> /dev/block/, for example:
>>
>> $ ls /dev/block/
>> bootdevice dm-6 loop24 loop43 ram13 sda5 sdd4 sde24 sde43 sde62 sdf1
>> by-name dm-7 loop25 loop44 ram14 sda6 sdd5 sde25 sde44 sde63 sdf10
>> dm-0 dm-8 loop26 loop45 ram15 sda7 sdd6 sde26 sde45 sde64 sdf11
>> dm-1 dm-9 loop27 loop46 ram2 sda8 sdd7 sde27 sde46 sde65 sdf12
>> dm-10 loop0 loop28 loop47 ram3 sda9 sde sde28 sde47 sde66 sdf13
>> dm-11 loop1 loop29 loop48 ram4 sdb sde1 sde29 sde48 sde67 sdf14
>> dm-12 loop10 loop3 loop49 ram5 sdb1 sde10 sde3 sde49 sde68 sdf15
>> dm-13 loop11 loop30 loop5 ram6 sdb2 sde11 sde30 sde5 sde69 sdf16
>> dm-14 loop12 loop31 loop50 ram7 sdb3 sde12 sde31 sde50 sde7 sdf17
>> dm-15 loop13 loop32 loop51 ram8 sdb4 sde13 sde32 sde51 sde70 sdf18
>> dm-16 loop14 loop33 loop6 ram9 sdb5 sde14 sde33 sde52 sde71 sdf19
>> dm-17 loop15 loop34 loop7 sda sdc sde15 sde34 sde53 sde72 sdf2
>> dm-18 loop16 loop35 loop8 sda1 sdc1 sde16 sde35 sde54 sde73 sdf3
>> dm-19 loop17 loop36 loop9 sda10 sdc2 sde17 sde36 sde55 sde74 sdf4
>> dm-2 loop18 loop37 mapper sda11 sdc3 sde18 sde37 sde56 sde75 sdf5
>> dm-20 loop19 loop38 platform sda12 sdc4 sde19 sde38 sde57 sde76 sdf6
>> dm-21 loop2 loop39 ram0 sda13 sdc5 sde2 sde39 sde58 sde77 sdf7
>> dm-3 loop20 loop4 ram1 sda14 sdd sde20 sde4 sde59 sde78 sdf8
>> dm-4 loop21 loop40 ram10 sda2 sdd1 sde21 sde40 sde6 sde8 sdf9
>> dm-5 loop22 loop41 ram11 sda3 sdd2 sde22 sde41 sde60 sde9 vold
>> dm-53 loop23 loop42 ram12 sda4 sdd3 sde23 sde42 sde61 sdf zram0
>>
>> this will cause stat_bdev cannot show bdev information.
>>
>> But most of devices (include android) show dev number path in /sys/dev/block, for example:
>>
>> $ ls /sys/dev/block
>> 1:0 254:1 254:6 259:21 259:38 259:54 7:104 7:24 7:368 8:11 8:4 8:70 8:87
>> 1:1 254:10 254:7 259:22 259:39 259:55 7:112 7:240 7:376 8:12 8:48 8:71 8:88
>> 1:10 254:11 254:8 259:23 259:4 259:56 7:120 7:248 7:384 8:13 8:49 8:72 8:89
>> 1:11 254:12 254:9 259:24 259:40 259:57 7:128 7:256 7:392 8:14 8:5 8:73 8:9
>> 1:12 254:13 259:0 259:25 259:41 259:58 7:136 7:264 7:40 8:16 8:50 8:74 8:90
>> 1:13 254:14 259:1 259:26 259:42 259:59 7:144 7:272 7:400 8:17 8:51 8:75 8:91
>> 1:14 254:15 259:10 259:27 259:43 259:6 7:152 7:280 7:408 8:18 8:52 8:76 8:92
>> 1:15 254:16 259:11 259:28 259:44 259:60 7:16 7:288 7:48 8:19 8:53 8:77 8:93
>> 1:2 254:17 259:12 259:29 259:45 259:61 7:160 7:296 7:56 8:2 8:54 8:78 8:94
>> 1:3 254:18 259:13 259:3 259:46 259:62 7:168 7:304 7:64 8:20 8:55 8:79 8:95
>> 1:4 254:19 259:14 259:30 259:47 259:63 7:176 7:312 7:72 8:21 8:6 8:8
>> 1:5 254:2 259:15 259:31 259:48 259:64 7:184 7:32 7:8 8:3 8:64 8:80
>> 1:6 254:20 259:16 259:32 259:49 259:65 7:192 7:320 7:80 8:32 8:65 8:81
>> 1:7 254:21 259:17 259:33 259:5 259:66 7:200 7:328 7:88 8:33 8:66 8:82
>> 1:8 254:3 259:18 259:34 259:50 259:7 7:208 7:336 7:96 8:34 8:67 8:83
>> 1:9 254:4 259:19 259:35 259:51 259:8 7:216 7:344 8:0 8:35 8:68 8:84
>> 253:0 254:5 259:2 259:36 259:52 259:9 7:224 7:352 8:1 8:36 8:69 8:85
>> 254:0 254:53 259:20 259:37 259:53 7:0 7:232 7:360 8:10 8:37 8:7 8:86
>>
>> so change the access path from /dev/block to /sys/dev/block
>> (same method of libudev)
>>
>> Before:
>>
>> $./f2fs.fibmap testfile_4k
>>
>> ----------------file info-------------------
>> testfile_4k :
>> --------------------------------------------
>> dev [254:53]
>> ino [0x 3dda : 15834]
>> mode [0x 81b6 : 33206]
>> nlink [0x 1 : 1]
>> uid [0x 0 : 0]
>> gid [0x 0 : 0]
>> size [0x 40000 : 262144]
>> blksize [0x 1000 : 4096]
>> blocks [0x 200 : 512]
>> --------------------------------------------
>>
>> file_pos start_blk end_blk blks
>> 0 2256926 2256987 62
>> 253952 2150337 2150338 2
>>
>> Patched:
>> $./f2fs.fibmap testfile_4k
>> ----------------bdev info-------------------
>> devname = 254:53
Hi Ben,
I didn't get why it shows different result when listing /dev/block
and /sys/dev/block, can you please check the root cause of this
issue?
If it only affect android, it should use WITH_ANDROID macro to
cover the codes?
Thanks,
>> start_lba = 0
>>
>> ----------------file info-------------------
>> testfile_4k :
>> --------------------------------------------
>> dev [254:53]
>> ino [0x 3dda : 15834]
>> mode [0x 81b6 : 33206]
>> nlink [0x 1 : 1]
>> uid [0x 0 : 0]
>> gid [0x 0 : 0]
>> size [0x 40000 : 262144]
>> blksize [0x 1000 : 4096]
>> blocks [0x 200 : 512]
>> --------------------------------------------
>>
>> file_pos start_blk end_blk blks
>> 0 2256926 2256987 62
>> 253952 2150337 2150338 2
>>
>> Signed-off-by: Ben Chang <ben.chang@sonicsky.net>
>> ---
>> tools/fibmap.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/tools/fibmap.c b/tools/fibmap.c
>> index 3238f29..9f94b53 100644
>> --- a/tools/fibmap.c
>> +++ b/tools/fibmap.c
>> @@ -102,7 +102,7 @@ static void stat_bdev(struct stat *st, unsigned int *start_lba)
>> char linkname[32] = { 0, };
>> int fd;
>>
>> - sprintf(devname, "/dev/block/%d:%d", major(st->st_dev), minor(st->st_dev));
>> + sprintf(devname, "/sys/dev/block/%d:%d", major(st->st_dev), minor(st->st_dev));
>>
>> fd = open(devname, O_RDONLY);
>> if (fd < 0)
>> --
>> 2.25.1
>>
>>
>>
>> _______________________________________________
>> Linux-f2fs-devel mailing list
>> Linux-f2fs-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
>
>
> _______________________________________________
> Linux-f2fs-devel mailing list
> Linux-f2fs-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
^ permalink raw reply [flat|nested] 4+ messages in thread
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2022-06-17 2:51 [f2fs-dev] [PATCH] f2fs-tools: fix cannot get bdev information Ben Chang
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2022-06-20 3:53 Ben Chang
2022-06-21 16:39 ` Jaegeuk Kim
2022-06-22 13:02 ` Chao Yu
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