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gfs2: Minor gfs2_glock_nq_m cleanup

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Add state and flags arguments to gfs2_rlist_alloc() to make it somewhat more
obvious which state and flags an rlist uses.  With that, stop knocking off
flags in gfs2_glock_nq_m() and its nq_m_sync() helper that are never set in the
first place.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2022-06-14 21:55:45 +02:00
parent fe39dc98fb
commit 44dab005fd
5 changed files with 11 additions and 11 deletions
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2
fs/gfs2/dir.c
View File

@ -2017,7 +2017,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
l_blocks++;
}
gfs2_rlist_alloc(&rlist);
gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE, LM_FLAG_NODE_SCOPE);
for (x = 0; x < rlist.rl_rgrps; x++) {
struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(rlist.rl_ghs[x].gh_gl);

6
fs/gfs2/glock.c
View File

@ -1780,7 +1780,7 @@ static int glock_compare(const void *arg_a, const void *arg_b)
}
/**
* nq_m_sync - synchonously acquire more than one glock in deadlock free order
* nq_m_sync - synchronously acquire more than one glock in deadlock free order
* @num_gh: the number of structures
* @ghs: an array of struct gfs2_holder structures
* @p: placeholder for the holder structure to pass back
@ -1801,8 +1801,6 @@ static int nq_m_sync(unsigned int num_gh, struct gfs2_holder *ghs,
sort(p, num_gh, sizeof(struct gfs2_holder *), glock_compare, NULL);
for (x = 0; x < num_gh; x++) {
p[x]->gh_flags &= ~(LM_FLAG_TRY | GL_ASYNC);
error = gfs2_glock_nq(p[x]);
if (error) {
while (x--)
@ -1819,7 +1817,6 @@ static int nq_m_sync(unsigned int num_gh, struct gfs2_holder *ghs,
* @num_gh: the number of structures
* @ghs: an array of struct gfs2_holder structures
*
*
* Returns: 0 on success (all glocks acquired),
* errno on failure (no glocks acquired)
*/
@ -1834,7 +1831,6 @@ int gfs2_glock_nq_m(unsigned int num_gh, struct gfs2_holder *ghs)
case 0:
return 0;
case 1:
ghs->gh_flags &= ~(LM_FLAG_TRY | GL_ASYNC);
return gfs2_glock_nq(ghs);
default:
if (num_gh <= 4)

9
fs/gfs2/rgrp.c
View File

@ -2720,12 +2720,15 @@ void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
* gfs2_rlist_alloc - all RGs have been added to the rlist, now allocate
* and initialize an array of glock holders for them
* @rlist: the list of resource groups
* @state: the state we're requesting
* @flags: the modifier flags
*
* FIXME: Don't use NOFAIL
*
*/
void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist)
void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist,
unsigned int state, u16 flags)
{
unsigned int x;
@ -2733,8 +2736,8 @@ void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist)
sizeof(struct gfs2_holder),
GFP_NOFS | __GFP_NOFAIL);
for (x = 0; x < rlist->rl_rgrps; x++)
gfs2_holder_init(rlist->rl_rgd[x]->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &rlist->rl_ghs[x]);
gfs2_holder_init(rlist->rl_rgd[x]->rd_gl, state, flags,
&rlist->rl_ghs[x]);
}
/**

3
fs/gfs2/rgrp.h
View File

@ -64,7 +64,8 @@ struct gfs2_rgrp_list {
extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
u64 block);
extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist);
extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist,
unsigned int state, u16 flags);
extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
extern u64 gfs2_ri_total(struct gfs2_sbd *sdp);
extern void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_rgrpd *rgd,

2
fs/gfs2/xattr.c
View File

@ -1313,7 +1313,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
else
goto out;
gfs2_rlist_alloc(&rlist);
gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE, LM_FLAG_NODE_SCOPE);
for (x = 0; x < rlist.rl_rgrps; x++) {
rgd = gfs2_glock2rgrp(rlist.rl_ghs[x].gh_gl);