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xfs: Modify xlog_ticket_alloc() to use kernel's MM API

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xlog_ticket_alloc() is always called under NOFS context, except from
unmount path, which eitherway is holding many FS locks, so, there is no
need for its callers to keep passing allocation flags into it.

change xlog_ticket_alloc() to use default kmem_cache_zalloc(), remove
its alloc_flags argument, and always use GFP_NOFS | __GFP_NOFAIL flags.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Carlos Maiolino 2020-07-22 09:23:17 -07:00 committed by Darrick J. Wong
parent 32a2b11f46
commit ca4f258990
3 changed files with 5 additions and 11 deletions
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9
fs/xfs/xfs_log.c
View File

@ -433,7 +433,7 @@ xfs_log_reserve(
XFS_STATS_INC(mp, xs_try_logspace);
ASSERT(*ticp == NULL);
tic = xlog_ticket_alloc(log, unit_bytes, cnt, client, permanent, 0);
tic = xlog_ticket_alloc(log, unit_bytes, cnt, client, permanent);
*ticp = tic;
xlog_grant_push_ail(log, tic->t_cnt ? tic->t_unit_res * tic->t_cnt
@ -3408,15 +3408,12 @@ xlog_ticket_alloc(
int unit_bytes,
int cnt,
char client,
bool permanent,
xfs_km_flags_t alloc_flags)
bool permanent)
{
struct xlog_ticket *tic;
int unit_res;
tic = kmem_zone_zalloc(xfs_log_ticket_zone, alloc_flags);
if (!tic)
return NULL;
tic = kmem_cache_zalloc(xfs_log_ticket_zone, GFP_NOFS | __GFP_NOFAIL);
unit_res = xfs_log_calc_unit_res(log->l_mp, unit_bytes);

3
fs/xfs/xfs_log_cil.c
View File

@ -37,8 +37,7 @@ xlog_cil_ticket_alloc(
{
struct xlog_ticket *tic;
tic = xlog_ticket_alloc(log, 0, 1, XFS_TRANSACTION, 0,
KM_NOFS);
tic = xlog_ticket_alloc(log, 0, 1, XFS_TRANSACTION, 0);
/*
* set the current reservation to zero so we know to steal the basic

4
fs/xfs/xfs_log_priv.h
View File

@ -464,9 +464,7 @@ xlog_ticket_alloc(
int unit_bytes,
int count,
char client,
bool permanent,
xfs_km_flags_t alloc_flags);
bool permanent);
static inline void
xlog_write_adv_cnt(void **ptr, int *len, int *off, size_t bytes)