On Wed, Nov 20, 2019 at 11:44:23AM +0100, Carlos Maiolino wrote:
> Use kzalloc() directly
>
> Special attention goes to function xfs_buf_map_from_irec(). Giving the
> fact we are not allowed to fail there, I removed the 'if (!map)'
> conditional from there, I'd just like somebody to double check if it's
> fine as I believe it is
>
> Signed-off-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
--D
> ---
> V2:
> - Fix comment on xfs_dir_lookup()
>
> fs/xfs/kmem.h | 6 ------
> fs/xfs/libxfs/xfs_attr_leaf.c | 3 ++-
> fs/xfs/libxfs/xfs_da_btree.c | 10 ++++------
> fs/xfs/libxfs/xfs_dir2.c | 27 +++++++++++++--------------
> fs/xfs/libxfs/xfs_iext_tree.c | 12 ++++++++----
> fs/xfs/scrub/agheader.c | 4 ++--
> fs/xfs/scrub/fscounters.c | 3 ++-
> fs/xfs/xfs_buf.c | 6 +++---
> fs/xfs/xfs_buf_item.c | 4 ++--
> fs/xfs/xfs_dquot_item.c | 3 ++-
> fs/xfs/xfs_error.c | 4 ++--
> fs/xfs/xfs_extent_busy.c | 3 ++-
> fs/xfs/xfs_extfree_item.c | 6 +++---
> fs/xfs/xfs_inode.c | 2 +-
> fs/xfs/xfs_itable.c | 8 ++++----
> fs/xfs/xfs_iwalk.c | 3 ++-
> fs/xfs/xfs_log.c | 5 +++--
> fs/xfs/xfs_log_cil.c | 6 +++---
> fs/xfs/xfs_log_recover.c | 12 ++++++------
> fs/xfs/xfs_mount.c | 3 ++-
> fs/xfs/xfs_mru_cache.c | 5 +++--
> fs/xfs/xfs_qm.c | 3 ++-
> fs/xfs/xfs_refcount_item.c | 4 ++--
> fs/xfs/xfs_rmap_item.c | 3 ++-
> fs/xfs/xfs_trans_ail.c | 3 ++-
> 25 files changed, 77 insertions(+), 71 deletions(-)
>
> diff --git a/fs/xfs/kmem.h b/fs/xfs/kmem.h
> index 7e4ad73771ce..b9ee67fa747b 100644
> --- a/fs/xfs/kmem.h
> +++ b/fs/xfs/kmem.h
> @@ -57,12 +57,6 @@ extern void *kmem_alloc_io(size_t size, int align_mask, xfs_km_flags_t flags);
> extern void *kmem_alloc_large(size_t size, xfs_km_flags_t);
> extern void *kmem_realloc(const void *, size_t, xfs_km_flags_t);
>
> -static inline void *
> -kmem_zalloc(size_t size, xfs_km_flags_t flags)
> -{
> - return kmem_alloc(size, flags | KM_ZERO);
> -}
> -
> static inline void *
> kmem_zalloc_large(size_t size, xfs_km_flags_t flags)
> {
> diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
> index 795b9b21b64d..67de68584224 100644
> --- a/fs/xfs/libxfs/xfs_attr_leaf.c
> +++ b/fs/xfs/libxfs/xfs_attr_leaf.c
> @@ -2253,7 +2253,8 @@ xfs_attr3_leaf_unbalance(
> struct xfs_attr_leafblock *tmp_leaf;
> struct xfs_attr3_icleaf_hdr tmphdr;
>
> - tmp_leaf = kmem_zalloc(state->args->geo->blksize, 0);
> + tmp_leaf = kzalloc(state->args->geo->blksize,
> + GFP_KERNEL | __GFP_NOFAIL);
>
> /*
> * Copy the header into the temp leaf so that all the stuff
> diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c
> index 10a96e64b2ec..29c25d1b3b76 100644
> --- a/fs/xfs/libxfs/xfs_da_btree.c
> +++ b/fs/xfs/libxfs/xfs_da_btree.c
> @@ -2534,10 +2534,8 @@ xfs_buf_map_from_irec(
> ASSERT(nirecs >= 1);
>
> if (nirecs > 1) {
> - map = kmem_zalloc(nirecs * sizeof(struct xfs_buf_map),
> - KM_NOFS);
> - if (!map)
> - return -ENOMEM;
> + map = kzalloc(nirecs * sizeof(struct xfs_buf_map),
> + GFP_NOFS | __GFP_NOFAIL);
> *mapp = map;
> }
>
> @@ -2593,8 +2591,8 @@ xfs_dabuf_map(
> * Optimize the one-block case.
> */
> if (nfsb != 1)
> - irecs = kmem_zalloc(sizeof(irec) * nfsb,
> - KM_NOFS);
> + irecs = kzalloc(sizeof(irec) * nfsb,
> + GFP_NOFS | __GFP_NOFAIL);
>
> nirecs = nfsb;
> error = xfs_bmapi_read(dp, (xfs_fileoff_t)bno, nfsb, irecs,
> diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c
> index efd7cec65259..c2deda036271 100644
> --- a/fs/xfs/libxfs/xfs_dir2.c
> +++ b/fs/xfs/libxfs/xfs_dir2.c
> @@ -104,10 +104,10 @@ xfs_da_mount(
> ASSERT(mp->m_sb.sb_versionnum & XFS_SB_VERSION_DIRV2BIT);
> ASSERT(xfs_dir2_dirblock_bytes(&mp->m_sb) <= XFS_MAX_BLOCKSIZE);
>
> - mp->m_dir_geo = kmem_zalloc(sizeof(struct xfs_da_geometry),
> - KM_MAYFAIL);
> - mp->m_attr_geo = kmem_zalloc(sizeof(struct xfs_da_geometry),
> - KM_MAYFAIL);
> + mp->m_dir_geo = kzalloc(sizeof(struct xfs_da_geometry),
> + GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> + mp->m_attr_geo = kzalloc(sizeof(struct xfs_da_geometry),
> + GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!mp->m_dir_geo || !mp->m_attr_geo) {
> kfree(mp->m_dir_geo);
> kfree(mp->m_attr_geo);
> @@ -234,7 +234,7 @@ xfs_dir_init(
> if (error)
> return error;
>
> - args = kmem_zalloc(sizeof(*args), KM_NOFS);
> + args = kzalloc(sizeof(*args), GFP_NOFS | __GFP_NOFAIL);
> if (!args)
> return -ENOMEM;
>
> @@ -271,7 +271,7 @@ xfs_dir_createname(
> XFS_STATS_INC(dp->i_mount, xs_dir_create);
> }
>
> - args = kmem_zalloc(sizeof(*args), KM_NOFS);
> + args = kzalloc(sizeof(*args), GFP_NOFS | __GFP_NOFAIL);
> if (!args)
> return -ENOMEM;
>
> @@ -363,14 +363,13 @@ xfs_dir_lookup(
> XFS_STATS_INC(dp->i_mount, xs_dir_lookup);
>
> /*
> - * We need to use KM_NOFS here so that lockdep will not throw false
> + * We need to use GFP_NOFS here so that lockdep will not throw false
> * positive deadlock warnings on a non-transactional lookup path. It is
> - * safe to recurse into inode recalim in that case, but lockdep can't
> - * easily be taught about it. Hence KM_NOFS avoids having to add more
> - * lockdep Doing this avoids having to add a bunch of lockdep class
> - * annotations into the reclaim path for the ilock.
> + * safe to recurse into inode reclaim in that case, but lockdep can't
> + * easily be taught about it. Hence GFP_NOFS avoids having to add more
> + * lockdep class annotations into the reclaim path for the ilock.
> */
> - args = kmem_zalloc(sizeof(*args), KM_NOFS);
> + args = kzalloc(sizeof(*args), GFP_NOFS | __GFP_NOFAIL);
> args->geo = dp->i_mount->m_dir_geo;
> args->name = name->name;
> args->namelen = name->len;
> @@ -439,7 +438,7 @@ xfs_dir_removename(
> ASSERT(S_ISDIR(VFS_I(dp)->i_mode));
> XFS_STATS_INC(dp->i_mount, xs_dir_remove);
>
> - args = kmem_zalloc(sizeof(*args), KM_NOFS);
> + args = kzalloc(sizeof(*args), GFP_NOFS | __GFP_NOFAIL);
> if (!args)
> return -ENOMEM;
>
> @@ -500,7 +499,7 @@ xfs_dir_replace(
> if (rval)
> return rval;
>
> - args = kmem_zalloc(sizeof(*args), KM_NOFS);
> + args = kzalloc(sizeof(*args), GFP_NOFS | __GFP_NOFAIL);
> if (!args)
> return -ENOMEM;
>
> diff --git a/fs/xfs/libxfs/xfs_iext_tree.c b/fs/xfs/libxfs/xfs_iext_tree.c
> index a7ba30cd81da..e75e7c021187 100644
> --- a/fs/xfs/libxfs/xfs_iext_tree.c
> +++ b/fs/xfs/libxfs/xfs_iext_tree.c
> @@ -398,7 +398,8 @@ static void
> xfs_iext_grow(
> struct xfs_ifork *ifp)
> {
> - struct xfs_iext_node *node = kmem_zalloc(NODE_SIZE, KM_NOFS);
> + struct xfs_iext_node *node = kzalloc(NODE_SIZE,
> + GFP_NOFS | __GFP_NOFAIL);
> int i;
>
> if (ifp->if_height == 1) {
> @@ -454,7 +455,8 @@ xfs_iext_split_node(
> int *nr_entries)
> {
> struct xfs_iext_node *node = *nodep;
> - struct xfs_iext_node *new = kmem_zalloc(NODE_SIZE, KM_NOFS);
> + struct xfs_iext_node *new = kzalloc(NODE_SIZE,
> + GFP_NOFS | __GFP_NOFAIL);
> const int nr_move = KEYS_PER_NODE / 2;
> int nr_keep = nr_move + (KEYS_PER_NODE & 1);
> int i = 0;
> @@ -542,7 +544,8 @@ xfs_iext_split_leaf(
> int *nr_entries)
> {
> struct xfs_iext_leaf *leaf = cur->leaf;
> - struct xfs_iext_leaf *new = kmem_zalloc(NODE_SIZE, KM_NOFS);
> + struct xfs_iext_leaf *new = kzalloc(NODE_SIZE,
> + GFP_NOFS | __GFP_NOFAIL);
> const int nr_move = RECS_PER_LEAF / 2;
> int nr_keep = nr_move + (RECS_PER_LEAF & 1);
> int i;
> @@ -583,7 +586,8 @@ xfs_iext_alloc_root(
> {
> ASSERT(ifp->if_bytes == 0);
>
> - ifp->if_u1.if_root = kmem_zalloc(sizeof(struct xfs_iext_rec), KM_NOFS);
> + ifp->if_u1.if_root = kzalloc(sizeof(struct xfs_iext_rec),
> + GFP_NOFS | __GFP_NOFAIL);
> ifp->if_height = 1;
>
> /* now that we have a node step into it */
> diff --git a/fs/xfs/scrub/agheader.c b/fs/xfs/scrub/agheader.c
> index 6f7126f6d25c..5533c0d38333 100644
> --- a/fs/xfs/scrub/agheader.c
> +++ b/fs/xfs/scrub/agheader.c
> @@ -720,8 +720,8 @@ xchk_agfl(
> memset(&sai, 0, sizeof(sai));
> sai.sc = sc;
> sai.sz_entries = agflcount;
> - sai.entries = kmem_zalloc(sizeof(xfs_agblock_t) * agflcount,
> - KM_MAYFAIL);
> + sai.entries = kzalloc(sizeof(xfs_agblock_t) * agflcount,
> + GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!sai.entries) {
> error = -ENOMEM;
> goto out;
> diff --git a/fs/xfs/scrub/fscounters.c b/fs/xfs/scrub/fscounters.c
> index 7251c66a82c9..bb036c5a6f21 100644
> --- a/fs/xfs/scrub/fscounters.c
> +++ b/fs/xfs/scrub/fscounters.c
> @@ -125,7 +125,8 @@ xchk_setup_fscounters(
> struct xchk_fscounters *fsc;
> int error;
>
> - sc->buf = kmem_zalloc(sizeof(struct xchk_fscounters), 0);
> + sc->buf = kzalloc(sizeof(struct xchk_fscounters),
> + GFP_KERNEL | __GFP_NOFAIL);
> if (!sc->buf)
> return -ENOMEM;
> fsc = sc->buf;
> diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
> index 0d2c41c6639d..c70122fbc2a8 100644
> --- a/fs/xfs/xfs_buf.c
> +++ b/fs/xfs/xfs_buf.c
> @@ -178,8 +178,8 @@ xfs_buf_get_maps(
> return 0;
> }
>
> - bp->b_maps = kmem_zalloc(map_count * sizeof(struct xfs_buf_map),
> - KM_NOFS);
> + bp->b_maps = kzalloc(map_count * sizeof(struct xfs_buf_map),
> + GFP_NOFS | __GFP_NOFAIL);
> if (!bp->b_maps)
> return -ENOMEM;
> return 0;
> @@ -1749,7 +1749,7 @@ xfs_alloc_buftarg(
> {
> xfs_buftarg_t *btp;
>
> - btp = kmem_zalloc(sizeof(*btp), KM_NOFS);
> + btp = kzalloc(sizeof(*btp), GFP_NOFS | __GFP_NOFAIL);
>
> btp->bt_mount = mp;
> btp->bt_dev = bdev->bd_dev;
> diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
> index dc39b2d1b351..4fea8e5e70fb 100644
> --- a/fs/xfs/xfs_buf_item.c
> +++ b/fs/xfs/xfs_buf_item.c
> @@ -701,8 +701,8 @@ xfs_buf_item_get_format(
> return 0;
> }
>
> - bip->bli_formats = kmem_zalloc(count * sizeof(struct xfs_buf_log_format),
> - 0);
> + bip->bli_formats = kzalloc(count * sizeof(struct xfs_buf_log_format),
> + GFP_KERNEL | __GFP_NOFAIL);
> if (!bip->bli_formats)
> return -ENOMEM;
> return 0;
> diff --git a/fs/xfs/xfs_dquot_item.c b/fs/xfs/xfs_dquot_item.c
> index 1b5e68ccef60..91bd47e8b832 100644
> --- a/fs/xfs/xfs_dquot_item.c
> +++ b/fs/xfs/xfs_dquot_item.c
> @@ -347,7 +347,8 @@ xfs_qm_qoff_logitem_init(
> {
> struct xfs_qoff_logitem *qf;
>
> - qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), 0);
> + qf = kzalloc(sizeof(struct xfs_qoff_logitem),
> + GFP_KERNEL | __GFP_NOFAIL);
>
> xfs_log_item_init(mp, &qf->qql_item, XFS_LI_QUOTAOFF, start ?
> &xfs_qm_qoffend_logitem_ops : &xfs_qm_qoff_logitem_ops);
> diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
> index 4c0883380d7c..0e0ef2e15e2e 100644
> --- a/fs/xfs/xfs_error.c
> +++ b/fs/xfs/xfs_error.c
> @@ -212,8 +212,8 @@ int
> xfs_errortag_init(
> struct xfs_mount *mp)
> {
> - mp->m_errortag = kmem_zalloc(sizeof(unsigned int) * XFS_ERRTAG_MAX,
> - KM_MAYFAIL);
> + mp->m_errortag = kzalloc(sizeof(unsigned int) * XFS_ERRTAG_MAX,
> + GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!mp->m_errortag)
> return -ENOMEM;
>
> diff --git a/fs/xfs/xfs_extent_busy.c b/fs/xfs/xfs_extent_busy.c
> index 9f0b99c7b34a..0ce50b47fc28 100644
> --- a/fs/xfs/xfs_extent_busy.c
> +++ b/fs/xfs/xfs_extent_busy.c
> @@ -33,7 +33,8 @@ xfs_extent_busy_insert(
> struct rb_node **rbp;
> struct rb_node *parent = NULL;
>
> - new = kmem_zalloc(sizeof(struct xfs_extent_busy), 0);
> + new = kzalloc(sizeof(struct xfs_extent_busy),
> + GFP_KERNEL | __GFP_NOFAIL);
> new->agno = agno;
> new->bno = bno;
> new->length = len;
> diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
> index c3b8804aa396..872312029957 100644
> --- a/fs/xfs/xfs_extfree_item.c
> +++ b/fs/xfs/xfs_extfree_item.c
> @@ -163,7 +163,7 @@ xfs_efi_init(
> if (nextents > XFS_EFI_MAX_FAST_EXTENTS) {
> size = (uint)(sizeof(xfs_efi_log_item_t) +
> ((nextents - 1) * sizeof(xfs_extent_t)));
> - efip = kmem_zalloc(size, 0);
> + efip = kzalloc(size, GFP_KERNEL | __GFP_NOFAIL);
> } else {
> efip = kmem_cache_zalloc(xfs_efi_zone,
> GFP_KERNEL | __GFP_NOFAIL);
> @@ -333,9 +333,9 @@ xfs_trans_get_efd(
> ASSERT(nextents > 0);
>
> if (nextents > XFS_EFD_MAX_FAST_EXTENTS) {
> - efdp = kmem_zalloc(sizeof(struct xfs_efd_log_item) +
> + efdp = kzalloc(sizeof(struct xfs_efd_log_item) +
> (nextents - 1) * sizeof(struct xfs_extent),
> - 0);
> + GFP_KERNEL | __GFP_NOFAIL);
> } else {
> efdp = kmem_cache_zalloc(xfs_efd_zone,
> GFP_KERNEL | __GFP_NOFAIL);
> diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
> index e1121ed7cbb5..297b2a73f285 100644
> --- a/fs/xfs/xfs_inode.c
> +++ b/fs/xfs/xfs_inode.c
> @@ -2024,7 +2024,7 @@ xfs_iunlink_add_backref(
> if (XFS_TEST_ERROR(false, pag->pag_mount, XFS_ERRTAG_IUNLINK_FALLBACK))
> return 0;
>
> - iu = kmem_zalloc(sizeof(*iu), KM_NOFS);
> + iu = kzalloc(sizeof(*iu), GFP_NOFS | __GFP_NOFAIL);
> iu->iu_agino = prev_agino;
> iu->iu_next_unlinked = this_agino;
>
> diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
> index 36bf47f11117..ec5d590469fc 100644
> --- a/fs/xfs/xfs_itable.c
> +++ b/fs/xfs/xfs_itable.c
> @@ -168,8 +168,8 @@ xfs_bulkstat_one(
>
> ASSERT(breq->icount == 1);
>
> - bc.buf = kmem_zalloc(sizeof(struct xfs_bulkstat),
> - KM_MAYFAIL);
> + bc.buf = kzalloc(sizeof(struct xfs_bulkstat),
> + GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!bc.buf)
> return -ENOMEM;
>
> @@ -242,8 +242,8 @@ xfs_bulkstat(
> if (xfs_bulkstat_already_done(breq->mp, breq->startino))
> return 0;
>
> - bc.buf = kmem_zalloc(sizeof(struct xfs_bulkstat),
> - KM_MAYFAIL);
> + bc.buf = kzalloc(sizeof(struct xfs_bulkstat),
> + GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!bc.buf)
> return -ENOMEM;
>
> diff --git a/fs/xfs/xfs_iwalk.c b/fs/xfs/xfs_iwalk.c
> index 67e98f9023d2..e6006423e140 100644
> --- a/fs/xfs/xfs_iwalk.c
> +++ b/fs/xfs/xfs_iwalk.c
> @@ -616,7 +616,8 @@ xfs_iwalk_threaded(
> if (xfs_pwork_ctl_want_abort(&pctl))
> break;
>
> - iwag = kmem_zalloc(sizeof(struct xfs_iwalk_ag), 0);
> + iwag = kzalloc(sizeof(struct xfs_iwalk_ag),
> + GFP_KERNEL | __GFP_NOFAIL);
> iwag->mp = mp;
> iwag->iwalk_fn = iwalk_fn;
> iwag->data = data;
> diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
> index 9ed7869d879f..152c87865241 100644
> --- a/fs/xfs/xfs_log.c
> +++ b/fs/xfs/xfs_log.c
> @@ -1412,7 +1412,7 @@ xlog_alloc_log(
> int error = -ENOMEM;
> uint log2_size = 0;
>
> - log = kmem_zalloc(sizeof(struct xlog), KM_MAYFAIL);
> + log = kzalloc(sizeof(struct xlog), GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!log) {
> xfs_warn(mp, "Log allocation failed: No memory!");
> goto out;
> @@ -1482,7 +1482,8 @@ xlog_alloc_log(
> size_t bvec_size = howmany(log->l_iclog_size, PAGE_SIZE) *
> sizeof(struct bio_vec);
>
> - iclog = kmem_zalloc(sizeof(*iclog) + bvec_size, KM_MAYFAIL);
> + iclog = kzalloc(sizeof(*iclog) + bvec_size,
> + GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!iclog)
> goto out_free_iclog;
>
> diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
> index 9953f2f040ab..de5c892c72b0 100644
> --- a/fs/xfs/xfs_log_cil.c
> +++ b/fs/xfs/xfs_log_cil.c
> @@ -660,7 +660,7 @@ xlog_cil_push(
> if (!cil)
> return 0;
>
> - new_ctx = kmem_zalloc(sizeof(*new_ctx), KM_NOFS);
> + new_ctx = kzalloc(sizeof(*new_ctx), GFP_NOFS | __GFP_NOFAIL);
> new_ctx->ticket = xlog_cil_ticket_alloc(log);
>
> down_write(&cil->xc_ctx_lock);
> @@ -1179,11 +1179,11 @@ xlog_cil_init(
> struct xfs_cil *cil;
> struct xfs_cil_ctx *ctx;
>
> - cil = kmem_zalloc(sizeof(*cil), KM_MAYFAIL);
> + cil = kzalloc(sizeof(*cil), GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!cil)
> return -ENOMEM;
>
> - ctx = kmem_zalloc(sizeof(*ctx), KM_MAYFAIL);
> + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!ctx) {
> kfree(cil);
> return -ENOMEM;
> diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
> index 4167e1326f62..cb02deb5dedc 100644
> --- a/fs/xfs/xfs_log_recover.c
> +++ b/fs/xfs/xfs_log_recover.c
> @@ -4171,7 +4171,7 @@ xlog_recover_add_item(
> {
> xlog_recover_item_t *item;
>
> - item = kmem_zalloc(sizeof(xlog_recover_item_t), 0);
> + item = kzalloc(sizeof(xlog_recover_item_t), GFP_KERNEL | __GFP_NOFAIL);
> INIT_LIST_HEAD(&item->ri_list);
> list_add_tail(&item->ri_list, head);
> }
> @@ -4298,8 +4298,8 @@ xlog_recover_add_to_trans(
>
> item->ri_total = in_f->ilf_size;
> item->ri_buf =
> - kmem_zalloc(item->ri_total * sizeof(xfs_log_iovec_t),
> - 0);
> + kzalloc(item->ri_total * sizeof(xfs_log_iovec_t),
> + GFP_KERNEL | __GFP_NOFAIL);
> }
>
> if (item->ri_total <= item->ri_cnt) {
> @@ -4442,7 +4442,7 @@ xlog_recover_ophdr_to_trans(
> * This is a new transaction so allocate a new recovery container to
> * hold the recovery ops that will follow.
> */
> - trans = kmem_zalloc(sizeof(struct xlog_recover), 0);
> + trans = kzalloc(sizeof(struct xlog_recover), GFP_KERNEL | __GFP_NOFAIL);
> trans->r_log_tid = tid;
> trans->r_lsn = be64_to_cpu(rhead->h_lsn);
> INIT_LIST_HEAD(&trans->r_itemq);
> @@ -5561,9 +5561,9 @@ xlog_do_log_recovery(
> * First do a pass to find all of the cancelled buf log items.
> * Store them in the buf_cancel_table for use in the second pass.
> */
> - log->l_buf_cancel_table = kmem_zalloc(XLOG_BC_TABLE_SIZE *
> + log->l_buf_cancel_table = kzalloc(XLOG_BC_TABLE_SIZE *
> sizeof(struct list_head),
> - 0);
> + GFP_KERNEL | __GFP_NOFAIL);
> for (i = 0; i < XLOG_BC_TABLE_SIZE; i++)
> INIT_LIST_HEAD(&log->l_buf_cancel_table[i]);
>
> diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
> index 53ddb058b11a..c352567c8ef5 100644
> --- a/fs/xfs/xfs_mount.c
> +++ b/fs/xfs/xfs_mount.c
> @@ -194,7 +194,8 @@ xfs_initialize_perag(
> continue;
> }
>
> - pag = kmem_zalloc(sizeof(*pag), KM_MAYFAIL);
> + pag = kzalloc(sizeof(*pag),
> + GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!pag)
> goto out_unwind_new_pags;
> pag->pag_agno = index;
> diff --git a/fs/xfs/xfs_mru_cache.c b/fs/xfs/xfs_mru_cache.c
> index 6ef0a71d7681..f24014759c57 100644
> --- a/fs/xfs/xfs_mru_cache.c
> +++ b/fs/xfs/xfs_mru_cache.c
> @@ -333,12 +333,13 @@ xfs_mru_cache_create(
> if (!(grp_time = msecs_to_jiffies(lifetime_ms) / grp_count))
> return -EINVAL;
>
> - if (!(mru = kmem_zalloc(sizeof(*mru), 0)))
> + if (!(mru = kzalloc(sizeof(*mru), GFP_KERNEL | __GFP_NOFAIL)))
> return -ENOMEM;
>
> /* An extra list is needed to avoid reaping up to a grp_time early. */
> mru->grp_count = grp_count + 1;
> - mru->lists = kmem_zalloc(mru->grp_count * sizeof(*mru->lists), 0);
> + mru->lists = kzalloc(mru->grp_count * sizeof(*mru->lists),
> + GFP_KERNEL | __GFP_NOFAIL);
>
> if (!mru->lists) {
> err = -ENOMEM;
> diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
> index 06c92dc61a03..a2664afa10c3 100644
> --- a/fs/xfs/xfs_qm.c
> +++ b/fs/xfs/xfs_qm.c
> @@ -643,7 +643,8 @@ xfs_qm_init_quotainfo(
>
> ASSERT(XFS_IS_QUOTA_RUNNING(mp));
>
> - qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), 0);
> + qinf = mp->m_quotainfo = kzalloc(sizeof(xfs_quotainfo_t),
> + GFP_KERNEL | __GFP_NOFAIL);
>
> error = list_lru_init(&qinf->qi_lru);
> if (error)
> diff --git a/fs/xfs/xfs_refcount_item.c b/fs/xfs/xfs_refcount_item.c
> index 76b39f2a0260..7ec70a5f1cb0 100644
> --- a/fs/xfs/xfs_refcount_item.c
> +++ b/fs/xfs/xfs_refcount_item.c
> @@ -143,8 +143,8 @@ xfs_cui_init(
>
> ASSERT(nextents > 0);
> if (nextents > XFS_CUI_MAX_FAST_EXTENTS)
> - cuip = kmem_zalloc(xfs_cui_log_item_sizeof(nextents),
> - 0);
> + cuip = kzalloc(xfs_cui_log_item_sizeof(nextents),
> + GFP_KERNEL | __GFP_NOFAIL);
> else
> cuip = kmem_cache_zalloc(xfs_cui_zone,
> GFP_KERNEL | __GFP_NOFAIL);
> diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c
> index 6aeb6745d007..82d822885996 100644
> --- a/fs/xfs/xfs_rmap_item.c
> +++ b/fs/xfs/xfs_rmap_item.c
> @@ -142,7 +142,8 @@ xfs_rui_init(
>
> ASSERT(nextents > 0);
> if (nextents > XFS_RUI_MAX_FAST_EXTENTS)
> - ruip = kmem_zalloc(xfs_rui_log_item_sizeof(nextents), 0);
> + ruip = kzalloc(xfs_rui_log_item_sizeof(nextents),
> + GFP_KERNEL | __GFP_NOFAIL);
> else
> ruip = kmem_cache_zalloc(xfs_rui_zone,
> GFP_KERNEL | __GFP_NOFAIL);
> diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
> index 589918d11041..2e3515df1bb5 100644
> --- a/fs/xfs/xfs_trans_ail.c
> +++ b/fs/xfs/xfs_trans_ail.c
> @@ -824,7 +824,8 @@ xfs_trans_ail_init(
> {
> struct xfs_ail *ailp;
>
> - ailp = kmem_zalloc(sizeof(struct xfs_ail), KM_MAYFAIL);
> + ailp = kzalloc(sizeof(struct xfs_ail),
> + GFP_KERNEL | __GFP_RETRY_MAYFAIL);
> if (!ailp)
> return -ENOMEM;
>
> --
> 2.23.0
>
