Re: [PATCH] Revert "f2fs: stop allocating pinned sections if EAGAIN happens"

From: Chao Yu
Date: Tue Feb 20 2024 - 01:50:25 EST


On 2024/2/8 16:11, Wu Bo wrote:
On 2024/2/5 11:54, Chao Yu wrote:
How about calling f2fs_balance_fs() to double check and make sure there is
enough free space for following allocation.

        if (has_not_enough_free_secs(sbi, 0,
            GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) {
            f2fs_down_write(&sbi->gc_lock);
            stat_inc_gc_call_count(sbi, FOREGROUND);
            err = f2fs_gc(sbi, &gc_control);
            if (err == -EAGAIN)
                f2fs_balance_fs(sbi, true);
            if (err && err != -ENODATA)
                goto out_err;
        }

Thanks,

f2fs_balance_fs() here will not change procedure branch and may just trigger another GC.

I'm afraid this is a bit redundant.

Okay.

I guess maybe Jaegeuk has concern which is the reason to commit
2e42b7f817ac ("f2fs: stop allocating pinned sections if EAGAIN happens").

Thanks,