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> --- 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
