Hello Jan, > On Sun, May 05, 2013 at 15:58 (+0200), Wang Shilong wrote: >> It seems the original code doesn't pass the right arg gfp_t to decide how to allocate. >> Just applying this patch, fsstress will fail. So please ignore this patch, will resend later.. > > That's in fact what the comment above the line you changed implies :-) e.. It seems tree_mod_alloc() will always allocate with GFP_ATOMIC in your code. However, i think we should try best not to allocate with GTP_ATOMIC.. otherwise, at least.. the arg gfp_t you try to pass is useless and should be removed ^_^ Thanks, Wang > > -Jan > >> Thanks, >> Wang >> >>> From: Wang Shilong <wangsl-fnst@xxxxxxxxxxxxxx> >>> >>> We have passed arg gfp_mask to tree_mod_alloc(), so >>> just use it rather than always use GFP_ATOMIC. >>> >>> Signed-off-by: Wang Shilong <wangsl-fnst@xxxxxxxxxxxxxx> >>> --- >>> fs/btrfs/ctree.c | 2 +- >>> 1 file changed, 1 insertion(+), 1 deletion(-) >>> >>> diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c >>> index de6de8e..0e3514f 100644 >>> --- a/fs/btrfs/ctree.c >>> +++ b/fs/btrfs/ctree.c >>> @@ -553,7 +553,7 @@ static inline int tree_mod_alloc(struct btrfs_fs_info *fs_info, gfp_t flags, >>> * once we switch from spin locks to something different, we should >>> * honor the flags parameter here. >>> */ >>> - tm = *tm_ret = kzalloc(sizeof(*tm), GFP_ATOMIC); >>> + tm = *tm_ret = kzalloc(sizeof(*tm), flags); >>> if (!tm) >>> return -ENOMEM; >>> >>> -- >>> 1.7.11.7 >>> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
