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-rw-r--r--fs/xfs/linux-2.6/sema.h19
-rw-r--r--fs/xfs/quota/xfs_dquot.h4
-rw-r--r--fs/xfs/quota/xfs_dquot_item.c4
-rw-r--r--fs/xfs/xfs_iget.c2
-rw-r--r--fs/xfs/xfs_inode.c4
-rw-r--r--fs/xfs/xfs_inode_item.c6
6 files changed, 20 insertions, 19 deletions
diff --git a/fs/xfs/linux-2.6/sema.h b/fs/xfs/linux-2.6/sema.h
index 194a84490bd1..b25090094cca 100644
--- a/fs/xfs/linux-2.6/sema.h
+++ b/fs/xfs/linux-2.6/sema.h
@@ -34,20 +34,21 @@ typedef struct semaphore sema_t;
#define initnsema(sp, val, name) sema_init(sp, val)
#define psema(sp, b) down(sp)
#define vsema(sp) up(sp)
-#define valusema(sp) (atomic_read(&(sp)->count))
-#define freesema(sema)
+#define freesema(sema) do { } while (0)
+
+static inline int issemalocked(sema_t *sp)
+{
+ return down_trylock(sp) || (up(sp), 0);
+}
/*
* Map cpsema (try to get the sema) to down_trylock. We need to switch
* the return values since cpsema returns 1 (acquired) 0 (failed) and
* down_trylock returns the reverse 0 (acquired) 1 (failed).
*/
-
-#define cpsema(sp) (down_trylock(sp) ? 0 : 1)
-
-/*
- * Didn't do cvsema(sp). Not sure how to map this to up/down/...
- * It does a vsema if the values is < 0 other wise nothing.
- */
+static inline int cpsema(sema_t *sp)
+{
+ return down_trylock(sp) ? 0 : 1;
+}
#endif /* __XFS_SUPPORT_SEMA_H__ */
diff --git a/fs/xfs/quota/xfs_dquot.h b/fs/xfs/quota/xfs_dquot.h
index c0c629663a5c..78d3ab95c5fd 100644
--- a/fs/xfs/quota/xfs_dquot.h
+++ b/fs/xfs/quota/xfs_dquot.h
@@ -119,7 +119,7 @@ XFS_DQ_IS_LOCKED(xfs_dquot_t *dqp)
*/
#define xfs_dqflock(dqp) { psema(&((dqp)->q_flock), PINOD | PRECALC);\
(dqp)->dq_flags |= XFS_DQ_FLOCKED; }
-#define xfs_dqfunlock(dqp) { ASSERT(valusema(&((dqp)->q_flock)) <= 0); \
+#define xfs_dqfunlock(dqp) { ASSERT(issemalocked(&((dqp)->q_flock))); \
vsema(&((dqp)->q_flock)); \
(dqp)->dq_flags &= ~(XFS_DQ_FLOCKED); }
@@ -128,7 +128,7 @@ XFS_DQ_IS_LOCKED(xfs_dquot_t *dqp)
#define XFS_DQ_PINUNLOCK(dqp, s) mutex_spinunlock( \
&(XFS_DQ_TO_QINF(dqp)->qi_pinlock), s)
-#define XFS_DQ_IS_FLUSH_LOCKED(dqp) (valusema(&((dqp)->q_flock)) <= 0)
+#define XFS_DQ_IS_FLUSH_LOCKED(dqp) (issemalocked(&((dqp)->q_flock)))
#define XFS_DQ_IS_ON_FREELIST(dqp) ((dqp)->dq_flnext != (dqp))
#define XFS_DQ_IS_DIRTY(dqp) ((dqp)->dq_flags & XFS_DQ_DIRTY)
#define XFS_QM_ISUDQ(dqp) ((dqp)->dq_flags & XFS_DQ_USER)
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index 546f48af882a..21ad5a55e014 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -248,7 +248,7 @@ xfs_qm_dquot_logitem_pushbuf(
* inode flush completed and the inode was taken off the AIL.
* So, just get out.
*/
- if ((valusema(&(dqp->q_flock)) > 0) ||
+ if (!issemalocked(&(dqp->q_flock)) ||
((qip->qli_item.li_flags & XFS_LI_IN_AIL) == 0)) {
qip->qli_pushbuf_flag = 0;
xfs_dqunlock(dqp);
@@ -261,7 +261,7 @@ xfs_qm_dquot_logitem_pushbuf(
if (bp != NULL) {
if (XFS_BUF_ISDELAYWRITE(bp)) {
dopush = ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
- (valusema(&(dqp->q_flock)) <= 0));
+ issemalocked(&(dqp->q_flock)));
qip->qli_pushbuf_flag = 0;
xfs_dqunlock(dqp);
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index da3c94c230db..7894b72a7177 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -1031,6 +1031,6 @@ xfs_iflock_nowait(xfs_inode_t *ip)
void
xfs_ifunlock(xfs_inode_t *ip)
{
- ASSERT(valusema(&(ip->i_flock)) <= 0);
+ ASSERT(issemalocked(&(ip->i_flock)));
vsema(&(ip->i_flock));
}
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 9af9e32a6a16..e799f0d00873 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -3015,7 +3015,7 @@ xfs_iflush(
XFS_STATS_INC(xs_iflush_count);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
- ASSERT(valusema(&ip->i_flock) <= 0);
+ ASSERT(issemalocked(&(ip->i_flock)));
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
ip->i_d.di_nextents > ip->i_df.if_ext_max);
@@ -3273,7 +3273,7 @@ xfs_iflush_int(
SPLDECL(s);
ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
- ASSERT(valusema(&ip->i_flock) <= 0);
+ ASSERT(issemalocked(&(ip->i_flock)));
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
ip->i_d.di_nextents > ip->i_df.if_ext_max);
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index cd65a565b4fe..2caa91b89714 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -794,7 +794,7 @@ xfs_inode_item_pushbuf(
* inode flush completed and the inode was taken off the AIL.
* So, just get out.
*/
- if ((valusema(&(ip->i_flock)) > 0) ||
+ if (!issemalocked(&(ip->i_flock)) ||
((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0)) {
iip->ili_pushbuf_flag = 0;
xfs_iunlock(ip, XFS_ILOCK_SHARED);
@@ -816,7 +816,7 @@ xfs_inode_item_pushbuf(
* If not, we can flush it async.
*/
dopush = ((iip->ili_item.li_flags & XFS_LI_IN_AIL) &&
- (valusema(&(ip->i_flock)) <= 0));
+ issemalocked(&(ip->i_flock)));
iip->ili_pushbuf_flag = 0;
xfs_iunlock(ip, XFS_ILOCK_SHARED);
xfs_buftrace("INODE ITEM PUSH", bp);
@@ -864,7 +864,7 @@ xfs_inode_item_push(
ip = iip->ili_inode;
ASSERT(ismrlocked(&(ip->i_lock), MR_ACCESS));
- ASSERT(valusema(&(ip->i_flock)) <= 0);
+ ASSERT(issemalocked(&(ip->i_flock)));
/*
* Since we were able to lock the inode's flush lock and
* we found it on the AIL, the inode must be dirty. This
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.