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Wong" To: Dave Chinner Cc: linux-xfs@vger.kernel.org, willy@infradead.org, linux-mm@kvack.org Subject: Re: [PATCH 04/12] xfs: convert kmem_free() for kvmalloc users to kvfree() Message-ID: <20240118225311.GG674499@frogsfrogsfrogs> References: <20240115230113.4080105-1-david@fromorbit.com> <20240115230113.4080105-5-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240115230113.4080105-5-david@fromorbit.com> X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 6A79E140013 X-Stat-Signature: sxmnmnyemkze79wkw3m6qux8u3k1nimn X-HE-Tag: 1705618394-829382 X-HE-Meta: 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 dx51/f1t bdVFQMRC0G0g59giRUXP84Antxk4l/i+y3ng/kmXZlQrCam2LtGxgZXRYYN4ggaZm0cebW3lD1pYzogUlcRg0Pre+yNk7Ou87+e1jdGeM/2ry7363GTAYZdqeaqAdK78B9DmelZqEMqndA10aQwXQGje0k9B/uAESSUpKb2FMxNaPD19rU6rSqrvI4RqqEYFwayr9Y58SbxeAjodbKMN5l7pZFLLf89kmhO2qCURWJorq936Q/n9gT3hThh//icEwrWhoX8DkJHboK3odbpkN5ZA5THLp0FlrUOZJIK2IDRXKJ5zZhGmxm6druw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Jan 16, 2024 at 09:59:42AM +1100, Dave Chinner wrote: > From: Dave Chinner > > Start getting rid of kmem_free() by converting all the cases where > memory can come from vmalloc interfaces to calling kvfree() > directly. > > Signed-off-by: Dave Chinner Looks fine to me! Just as a warning there's some dumb bot out there that will flag "unnecessary" use of kvfree where kfree could be used. I choose to ignore that bot because who gives a f*** but that's the state of things now. :( Reviewed-by: Darrick J. Wong --D > --- > fs/xfs/xfs_acl.c | 4 ++-- > fs/xfs/xfs_attr_item.c | 4 ++-- > fs/xfs/xfs_bmap_item.c | 4 ++-- > fs/xfs/xfs_buf_item.c | 2 +- > fs/xfs/xfs_dquot.c | 2 +- > fs/xfs/xfs_extfree_item.c | 4 ++-- > fs/xfs/xfs_icreate_item.c | 2 +- > fs/xfs/xfs_inode_item.c | 2 +- > fs/xfs/xfs_ioctl.c | 2 +- > fs/xfs/xfs_log.c | 4 ++-- > fs/xfs/xfs_log_cil.c | 2 +- > fs/xfs/xfs_log_recover.c | 42 +++++++++++++++++++------------------- > fs/xfs/xfs_refcount_item.c | 4 ++-- > fs/xfs/xfs_rmap_item.c | 4 ++-- > fs/xfs/xfs_rtalloc.c | 6 +++--- > 15 files changed, 44 insertions(+), 44 deletions(-) > > diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c > index 6b840301817a..4bf69c9c088e 100644 > --- a/fs/xfs/xfs_acl.c > +++ b/fs/xfs/xfs_acl.c > @@ -167,7 +167,7 @@ xfs_get_acl(struct inode *inode, int type, bool rcu) > acl = ERR_PTR(error); > } > > - kmem_free(args.value); > + kvfree(args.value); > return acl; > } > > @@ -204,7 +204,7 @@ __xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type) > } > > error = xfs_attr_change(&args); > - kmem_free(args.value); > + kvfree(args.value); > > /* > * If the attribute didn't exist to start with that's fine. > diff --git a/fs/xfs/xfs_attr_item.c b/fs/xfs/xfs_attr_item.c > index 2e454a0d6f19..f7ba80d575d4 100644 > --- a/fs/xfs/xfs_attr_item.c > +++ b/fs/xfs/xfs_attr_item.c > @@ -108,7 +108,7 @@ STATIC void > xfs_attri_item_free( > struct xfs_attri_log_item *attrip) > { > - kmem_free(attrip->attri_item.li_lv_shadow); > + kvfree(attrip->attri_item.li_lv_shadow); > xfs_attri_log_nameval_put(attrip->attri_nameval); > kmem_cache_free(xfs_attri_cache, attrip); > } > @@ -251,7 +251,7 @@ static inline struct xfs_attrd_log_item *ATTRD_ITEM(struct xfs_log_item *lip) > STATIC void > xfs_attrd_item_free(struct xfs_attrd_log_item *attrdp) > { > - kmem_free(attrdp->attrd_item.li_lv_shadow); > + kvfree(attrdp->attrd_item.li_lv_shadow); > kmem_cache_free(xfs_attrd_cache, attrdp); > } > > diff --git a/fs/xfs/xfs_bmap_item.c b/fs/xfs/xfs_bmap_item.c > index 52fb8a148b7d..029a6a8d0efd 100644 > --- a/fs/xfs/xfs_bmap_item.c > +++ b/fs/xfs/xfs_bmap_item.c > @@ -40,7 +40,7 @@ STATIC void > xfs_bui_item_free( > struct xfs_bui_log_item *buip) > { > - kmem_free(buip->bui_item.li_lv_shadow); > + kvfree(buip->bui_item.li_lv_shadow); > kmem_cache_free(xfs_bui_cache, buip); > } > > @@ -201,7 +201,7 @@ xfs_bud_item_release( > struct xfs_bud_log_item *budp = BUD_ITEM(lip); > > xfs_bui_release(budp->bud_buip); > - kmem_free(budp->bud_item.li_lv_shadow); > + kvfree(budp->bud_item.li_lv_shadow); > kmem_cache_free(xfs_bud_cache, budp); > } > > diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c > index ec93d34188c8..545040c6ae87 100644 > --- a/fs/xfs/xfs_buf_item.c > +++ b/fs/xfs/xfs_buf_item.c > @@ -1044,7 +1044,7 @@ xfs_buf_item_free( > struct xfs_buf_log_item *bip) > { > xfs_buf_item_free_format(bip); > - kmem_free(bip->bli_item.li_lv_shadow); > + kvfree(bip->bli_item.li_lv_shadow); > kmem_cache_free(xfs_buf_item_cache, bip); > } > > diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c > index a93ad76f23c5..17c82f5e783c 100644 > --- a/fs/xfs/xfs_dquot.c > +++ b/fs/xfs/xfs_dquot.c > @@ -53,7 +53,7 @@ xfs_qm_dqdestroy( > { > ASSERT(list_empty(&dqp->q_lru)); > > - kmem_free(dqp->q_logitem.qli_item.li_lv_shadow); > + kvfree(dqp->q_logitem.qli_item.li_lv_shadow); > mutex_destroy(&dqp->q_qlock); > > XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot); > diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c > index 1d1185fca6a5..6062703a2723 100644 > --- a/fs/xfs/xfs_extfree_item.c > +++ b/fs/xfs/xfs_extfree_item.c > @@ -40,7 +40,7 @@ STATIC void > xfs_efi_item_free( > struct xfs_efi_log_item *efip) > { > - kmem_free(efip->efi_item.li_lv_shadow); > + kvfree(efip->efi_item.li_lv_shadow); > if (efip->efi_format.efi_nextents > XFS_EFI_MAX_FAST_EXTENTS) > kmem_free(efip); > else > @@ -229,7 +229,7 @@ static inline struct xfs_efd_log_item *EFD_ITEM(struct xfs_log_item *lip) > STATIC void > xfs_efd_item_free(struct xfs_efd_log_item *efdp) > { > - kmem_free(efdp->efd_item.li_lv_shadow); > + kvfree(efdp->efd_item.li_lv_shadow); > if (efdp->efd_format.efd_nextents > XFS_EFD_MAX_FAST_EXTENTS) > kmem_free(efdp); > else > diff --git a/fs/xfs/xfs_icreate_item.c b/fs/xfs/xfs_icreate_item.c > index b05314d48176..4345db501714 100644 > --- a/fs/xfs/xfs_icreate_item.c > +++ b/fs/xfs/xfs_icreate_item.c > @@ -63,7 +63,7 @@ STATIC void > xfs_icreate_item_release( > struct xfs_log_item *lip) > { > - kmem_free(ICR_ITEM(lip)->ic_item.li_lv_shadow); > + kvfree(ICR_ITEM(lip)->ic_item.li_lv_shadow); > kmem_cache_free(xfs_icreate_cache, ICR_ITEM(lip)); > } > > diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c > index 0aee97ba0be8..bfbeafc8e120 100644 > --- a/fs/xfs/xfs_inode_item.c > +++ b/fs/xfs/xfs_inode_item.c > @@ -856,7 +856,7 @@ xfs_inode_item_destroy( > ASSERT(iip->ili_item.li_buf == NULL); > > ip->i_itemp = NULL; > - kmem_free(iip->ili_item.li_lv_shadow); > + kvfree(iip->ili_item.li_lv_shadow); > kmem_cache_free(xfs_ili_cache, iip); > } > > diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c > index f02b6e558af5..45fb169bd819 100644 > --- a/fs/xfs/xfs_ioctl.c > +++ b/fs/xfs/xfs_ioctl.c > @@ -493,7 +493,7 @@ xfs_attrmulti_attr_get( > error = -EFAULT; > > out_kfree: > - kmem_free(args.value); > + kvfree(args.value); > return error; > } > > diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c > index d38cfaadc726..0009ffbec932 100644 > --- a/fs/xfs/xfs_log.c > +++ b/fs/xfs/xfs_log.c > @@ -1662,7 +1662,7 @@ xlog_alloc_log( > out_free_iclog: > for (iclog = log->l_iclog; iclog; iclog = prev_iclog) { > prev_iclog = iclog->ic_next; > - kmem_free(iclog->ic_data); > + kvfree(iclog->ic_data); > kmem_free(iclog); > if (prev_iclog == log->l_iclog) > break; > @@ -2119,7 +2119,7 @@ xlog_dealloc_log( > iclog = log->l_iclog; > for (i = 0; i < log->l_iclog_bufs; i++) { > next_iclog = iclog->ic_next; > - kmem_free(iclog->ic_data); > + kvfree(iclog->ic_data); > kmem_free(iclog); > iclog = next_iclog; > } > diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c > index 3c705f22b0ab..2c0512916cc9 100644 > --- a/fs/xfs/xfs_log_cil.c > +++ b/fs/xfs/xfs_log_cil.c > @@ -339,7 +339,7 @@ xlog_cil_alloc_shadow_bufs( > * the buffer, only the log vector header and the iovec > * storage. > */ > - kmem_free(lip->li_lv_shadow); > + kvfree(lip->li_lv_shadow); > lv = xlog_kvmalloc(buf_size); > > memset(lv, 0, xlog_cil_iovec_space(niovecs)); > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index e3bd503edcab..295306ef6959 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -361,7 +361,7 @@ xlog_find_verify_cycle( > *new_blk = -1; > > out: > - kmem_free(buffer); > + kvfree(buffer); > return error; > } > > @@ -477,7 +477,7 @@ xlog_find_verify_log_record( > *last_blk = i; > > out: > - kmem_free(buffer); > + kvfree(buffer); > return error; > } > > @@ -731,7 +731,7 @@ xlog_find_head( > goto out_free_buffer; > } > > - kmem_free(buffer); > + kvfree(buffer); > if (head_blk == log_bbnum) > *return_head_blk = 0; > else > @@ -745,7 +745,7 @@ xlog_find_head( > return 0; > > out_free_buffer: > - kmem_free(buffer); > + kvfree(buffer); > if (error) > xfs_warn(log->l_mp, "failed to find log head"); > return error; > @@ -999,7 +999,7 @@ xlog_verify_tail( > "Tail block (0x%llx) overwrite detected. Updated to 0x%llx", > orig_tail, *tail_blk); > out: > - kmem_free(buffer); > + kvfree(buffer); > return error; > } > > @@ -1046,7 +1046,7 @@ xlog_verify_head( > error = xlog_rseek_logrec_hdr(log, *head_blk, *tail_blk, > XLOG_MAX_ICLOGS, tmp_buffer, > &tmp_rhead_blk, &tmp_rhead, &tmp_wrapped); > - kmem_free(tmp_buffer); > + kvfree(tmp_buffer); > if (error < 0) > return error; > > @@ -1365,7 +1365,7 @@ xlog_find_tail( > error = xlog_clear_stale_blocks(log, tail_lsn); > > done: > - kmem_free(buffer); > + kvfree(buffer); > > if (error) > xfs_warn(log->l_mp, "failed to locate log tail"); > @@ -1399,6 +1399,7 @@ xlog_find_zeroed( > xfs_daddr_t new_blk, last_blk, start_blk; > xfs_daddr_t num_scan_bblks; > int error, log_bbnum = log->l_logBBsize; > + int ret = 1; > > *blk_no = 0; > > @@ -1413,8 +1414,7 @@ xlog_find_zeroed( > first_cycle = xlog_get_cycle(offset); > if (first_cycle == 0) { /* completely zeroed log */ > *blk_no = 0; > - kmem_free(buffer); > - return 1; > + goto out_free_buffer; > } > > /* check partially zeroed log */ > @@ -1424,8 +1424,8 @@ xlog_find_zeroed( > > last_cycle = xlog_get_cycle(offset); > if (last_cycle != 0) { /* log completely written to */ > - kmem_free(buffer); > - return 0; > + ret = 0; > + goto out_free_buffer; > } > > /* we have a partially zeroed log */ > @@ -1471,10 +1471,10 @@ xlog_find_zeroed( > > *blk_no = last_blk; > out_free_buffer: > - kmem_free(buffer); > + kvfree(buffer); > if (error) > return error; > - return 1; > + return ret; > } > > /* > @@ -1583,7 +1583,7 @@ xlog_write_log_records( > } > > out_free_buffer: > - kmem_free(buffer); > + kvfree(buffer); > return error; > } > > @@ -2183,7 +2183,7 @@ xlog_recover_add_to_trans( > "bad number of regions (%d) in inode log format", > in_f->ilf_size); > ASSERT(0); > - kmem_free(ptr); > + kvfree(ptr); > return -EFSCORRUPTED; > } > > @@ -2197,7 +2197,7 @@ xlog_recover_add_to_trans( > "log item region count (%d) overflowed size (%d)", > item->ri_cnt, item->ri_total); > ASSERT(0); > - kmem_free(ptr); > + kvfree(ptr); > return -EFSCORRUPTED; > } > > @@ -2227,7 +2227,7 @@ xlog_recover_free_trans( > /* Free the regions in the item. */ > list_del(&item->ri_list); > for (i = 0; i < item->ri_cnt; i++) > - kmem_free(item->ri_buf[i].i_addr); > + kvfree(item->ri_buf[i].i_addr); > /* Free the item itself */ > kmem_free(item->ri_buf); > kmem_free(item); > @@ -3024,7 +3024,7 @@ xlog_do_recovery_pass( > > hblks = xlog_logrec_hblks(log, rhead); > if (hblks != 1) { > - kmem_free(hbp); > + kvfree(hbp); > hbp = xlog_alloc_buffer(log, hblks); > } > } else { > @@ -3038,7 +3038,7 @@ xlog_do_recovery_pass( > return -ENOMEM; > dbp = xlog_alloc_buffer(log, BTOBB(h_size)); > if (!dbp) { > - kmem_free(hbp); > + kvfree(hbp); > return -ENOMEM; > } > > @@ -3199,9 +3199,9 @@ xlog_do_recovery_pass( > } > > bread_err2: > - kmem_free(dbp); > + kvfree(dbp); > bread_err1: > - kmem_free(hbp); > + kvfree(hbp); > > /* > * Submit buffers that have been added from the last record processed, > diff --git a/fs/xfs/xfs_refcount_item.c b/fs/xfs/xfs_refcount_item.c > index 78d0cda60abf..a9b322e23cfb 100644 > --- a/fs/xfs/xfs_refcount_item.c > +++ b/fs/xfs/xfs_refcount_item.c > @@ -36,7 +36,7 @@ STATIC void > xfs_cui_item_free( > struct xfs_cui_log_item *cuip) > { > - kmem_free(cuip->cui_item.li_lv_shadow); > + kvfree(cuip->cui_item.li_lv_shadow); > if (cuip->cui_format.cui_nextents > XFS_CUI_MAX_FAST_EXTENTS) > kmem_free(cuip); > else > @@ -207,7 +207,7 @@ xfs_cud_item_release( > struct xfs_cud_log_item *cudp = CUD_ITEM(lip); > > xfs_cui_release(cudp->cud_cuip); > - kmem_free(cudp->cud_item.li_lv_shadow); > + kvfree(cudp->cud_item.li_lv_shadow); > kmem_cache_free(xfs_cud_cache, cudp); > } > > diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c > index 31a921fc34b2..489ca8c0e1dc 100644 > --- a/fs/xfs/xfs_rmap_item.c > +++ b/fs/xfs/xfs_rmap_item.c > @@ -36,7 +36,7 @@ STATIC void > xfs_rui_item_free( > struct xfs_rui_log_item *ruip) > { > - kmem_free(ruip->rui_item.li_lv_shadow); > + kvfree(ruip->rui_item.li_lv_shadow); > if (ruip->rui_format.rui_nextents > XFS_RUI_MAX_FAST_EXTENTS) > kmem_free(ruip); > else > @@ -206,7 +206,7 @@ xfs_rud_item_release( > struct xfs_rud_log_item *rudp = RUD_ITEM(lip); > > xfs_rui_release(rudp->rud_ruip); > - kmem_free(rudp->rud_item.li_lv_shadow); > + kvfree(rudp->rud_item.li_lv_shadow); > kmem_cache_free(xfs_rud_cache, rudp); > } > > diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c > index 8a8d6197203e..57ed9baaf156 100644 > --- a/fs/xfs/xfs_rtalloc.c > +++ b/fs/xfs/xfs_rtalloc.c > @@ -1059,10 +1059,10 @@ xfs_growfs_rt( > */ > if (rsum_cache != mp->m_rsum_cache) { > if (error) { > - kmem_free(mp->m_rsum_cache); > + kvfree(mp->m_rsum_cache); > mp->m_rsum_cache = rsum_cache; > } else { > - kmem_free(rsum_cache); > + kvfree(rsum_cache); > } > } > > @@ -1233,7 +1233,7 @@ void > xfs_rtunmount_inodes( > struct xfs_mount *mp) > { > - kmem_free(mp->m_rsum_cache); > + kvfree(mp->m_rsum_cache); > if (mp->m_rbmip) > xfs_irele(mp->m_rbmip); > if (mp->m_rsumip) > -- > 2.43.0 > >