On 12/20, Gaoxiang (OS) wrote: > Hi Jaegeuk, > > On 2017/12/20 7:57, Jaegeuk Kim wrote: > > On 12/18, Yunlei He wrote: > >> Use free segments if free segments is enough > > > > It doesn't matter with large section? > > > I couldn't find any special constraint with the large section > after I read GC and SSR selection flow... :( > And since now f2fs has aggressive SSR, different types of node > or different types of data will be mixed in a segment... > > I have turned to Yun Lei and Yong for help, but we still cannot > get any conclusion on it. > > Could you give me some hints on the large section?
It can be used for LFS mode by host-managed SMR drives. > > Thanks again > > >> > >> Signed-off-by: Yunlei He <[email protected]> > >> --- > >> fsck/mount.c | 21 ++++++--------------- > >> 1 file changed, 6 insertions(+), 15 deletions(-) > >> > >> diff --git a/fsck/mount.c b/fsck/mount.c > >> index 678eeae..3e25165 100644 > >> --- a/fsck/mount.c > >> +++ b/fsck/mount.c > >> @@ -1890,23 +1890,14 @@ int find_next_free_block(struct f2fs_sb_info *sbi, > >> u64 *to, int left, int type) > >> continue; > >> } > >> > >> - if (se->valid_blocks == 0 && not_enough) { > >> - *to = left ? START_BLOCK(sbi, segno) - 1: > >> + if (se->valid_blocks == 0) { > >> + if (not_enough) { > >> + *to = left ? START_BLOCK(sbi, segno) - 1: > >> START_BLOCK(sbi, segno + 1); > >> - continue; > >> - } > >> - > >> - if (se->valid_blocks == 0 && !(segno % sbi->segs_per_sec)) { > >> - struct seg_entry *se2; > >> - unsigned int i; > >> - > >> - for (i = 1; i < sbi->segs_per_sec; i++) { > >> - se2 = get_seg_entry(sbi, segno + i); > >> - if (se2->valid_blocks) > >> - break; > >> - } > >> - if (i == sbi->segs_per_sec) > >> + continue; > >> + } else { > >> return 0; > >> + } > >> } > >> > >> if (se->type == type && > >> -- > >> 1.9.1 > > > > ------------------------------------------------------------------------------ > > Check out the vibrant tech community on one of the world's most > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > _______________________________________________ > > Linux-f2fs-devel mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel > > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
