On Nov 7, 2022, at 06:24, Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx> wrote: > > From: Wang Shilong <wshilong@xxxxxxx> > > e2fsck init memory according to filesystem inodes/dir numbers > recorded in the superblock, this should be aware of filesystem > number of threads, otherwise, oom can happen. > > So in case of fs->fs_num_threads, this patch controls the amount of > memory consumed for running multiple threads in e2fsck. > > Signed-off-by: Wang Shilong <wshilong@xxxxxxx> > Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx> Reviewed-by: Andreas Dilger <adilger@xxxxxxxxx> > --- > lib/ext2fs/dblist.c | 2 ++ > lib/ext2fs/icount.c | 4 ++++ > 2 files changed, 6 insertions(+) > > diff --git a/lib/ext2fs/dblist.c b/lib/ext2fs/dblist.c > index 5568b8ec..c19e17bc 100644 > --- a/lib/ext2fs/dblist.c > +++ b/lib/ext2fs/dblist.c > @@ -58,6 +58,8 @@ static errcode_t make_dblist(ext2_filsys fs, ext2_ino_t size, > if (retval) > goto cleanup; > dblist->size = (num_dirs * 2) + 12; > + if (fs->fs_num_threads) > + dblist->size /= fs->fs_num_threads; > } > len = (size_t) sizeof(struct ext2_db_entry2) * dblist->size; > dblist->count = count; > diff --git a/lib/ext2fs/icount.c b/lib/ext2fs/icount.c > index 766eccca..48665c7e 100644 > --- a/lib/ext2fs/icount.c > +++ b/lib/ext2fs/icount.c > @@ -237,6 +237,8 @@ errcode_t ext2fs_create_icount_tdb(ext2_filsys fs EXT2FS_NO_TDB_UNUSED, > * value. > */ > num_inodes = fs->super->s_inodes_count - fs->super->s_free_inodes_count; > + if (fs->fs_num_threads) > + num_inodes /= fs->fs_num_threads; > > icount->tdb = tdb_open(fn, num_inodes, TDB_NOLOCK | TDB_NOSYNC, > O_RDWR | O_CREAT | O_TRUNC, 0600); > @@ -288,6 +290,8 @@ errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags, unsigned int size, > if (retval) > goto errout; > icount->size += fs->super->s_inodes_count / 50; > + if (fs->fs_num_threads) > + icount->size /= fs->fs_num_threads; > } > > bytes = (size_t) (icount->size * sizeof(struct ext2_icount_el)); > -- > 2.37.3 >
