linux_dsm_epyc7002/fs/f2fs
Jaegeuk Kim bb95d9ab2a f2fs: drop exist_data for inline_data when truncated to 0
A test program gets the SEEK_DATA with two values between
a new created file and the exist file on f2fs filesystem.

F2FS filesystem,  (the first "test1" is a new file)
SEEK_DATA size != 0 (offset = 8192)
SEEK_DATA size != 0 (offset = 4096)

PNFS filesystem, (the first "test1" is a new file)
SEEK_DATA size != 0 (offset = 4096)
SEEK_DATA size != 0 (offset = 4096)

int main(int argc, char **argv)
{
        char *filename = argv[1];
        int offset = 1, i = 0, fd = -1;

        if (argc < 2) {
                printf("Usage: %s f2fsfilename\n", argv[0]);
                return -1;
        }

        /*
        if (!access(filename, F_OK) || errno != ENOENT) {
                printf("Needs a new file for test, %m\n");
                return -1;
        }*/

        fd = open(filename, O_RDWR | O_CREAT, 0777);
        if (fd < 0) {
                printf("Create test file %s failed, %m\n", filename);
                return -1;
        }

        for (i = 0; i < 20; i++) {
                offset = 1 << i;
                ftruncate(fd, 0);
                lseek(fd, offset, SEEK_SET);
                write(fd, "test", 5);
                /* Get the alloc size by seek data equal zero*/
                if (lseek(fd, 0, SEEK_DATA)) {
                        printf("SEEK_DATA size != 0 (offset = %d)\n", offset);
                        break;
                }
        }

        close(fd);
        return 0;
}

Reported-and-Tested-by: Kinglong Mee <kinglongmee@gmail.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-01-29 12:46:01 +09:00
..
acl.c f2fs: keep dirty inodes selectively for checkpoint 2016-11-23 12:11:08 -08:00
acl.h f2fs: remove dead code f2fs_check_acl 2016-09-14 16:52:36 -07:00
checkpoint.c for-f2fs-4.10 2016-12-14 09:07:36 -08:00
data.c f2fs: support IO alignment for DATA and NODE writes 2017-01-29 12:46:01 +09:00
debug.c f2fs: show the max number of atomic operations 2017-01-29 12:46:01 +09:00
dir.c f2fs: report error of f2fs_fill_dentries 2016-11-23 12:11:12 -08:00
extent_cache.c f2fs: use rb_entry_safe 2017-01-29 12:46:01 +09:00
f2fs.h f2fs: show the max number of atomic operations 2017-01-29 12:46:01 +09:00
file.c f2fs: drop exist_data for inline_data when truncated to 0 2017-01-29 12:46:01 +09:00
gc.c for-f2fs-4.10 2016-12-14 09:07:36 -08:00
gc.h f2fs: detect idle time depending on user behavior 2016-01-11 15:56:37 -08:00
hash.c f2fs: introduce dot and dotdot name check 2015-05-28 15:41:34 -07:00
inline.c for-f2fs-4.10 2016-12-14 09:07:36 -08:00
inode.c f2fs: record inode updating status correctly 2016-11-23 12:11:25 -08:00
Kconfig f2fs: add mount option to select fault injection ratio 2016-05-07 10:32:22 -07:00
Makefile fs crypto: move per-file encryption from f2fs tree to fs/crypto 2016-03-17 21:19:33 -07:00
namei.c f2fs: don't allow encrypted operations without keys 2017-01-29 12:46:01 +09:00
node.c f2fs: don't cache nat entry if out of memory 2017-01-29 12:46:00 +09:00
node.h f2fs: split free nid list 2016-11-23 12:11:00 -08:00
recovery.c f2fs: remove unused values in recover_fsync_data 2017-01-29 12:46:00 +09:00
segment.c f2fs: show the max number of atomic operations 2017-01-29 12:46:01 +09:00
segment.h f2fs: support IO alignment for DATA and NODE writes 2017-01-29 12:46:01 +09:00
shrinker.c f2fs: avoid casted negative value as shrink count 2016-11-23 12:11:03 -08:00
super.c f2fs: get io size bit from mount option 2017-01-29 12:46:01 +09:00
trace.c f2fs: use bio op accessors 2016-06-07 13:41:38 -06:00
trace.h f2fs: add sbi and page pointer in f2fs_io_info 2015-05-28 15:41:32 -07:00
xattr.c f2fs: keep dirty inodes selectively for checkpoint 2016-11-23 12:11:08 -08:00
xattr.h f2fs: add missing argument to f2fs_setxattr stub 2016-03-17 21:19:47 -07:00