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[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem

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This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.

Modified-by: Ingo Molnar <mingo@elte.hu>

(finished the conversion)

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jes Sorensen
2006-01-09 15:59:24 -08:00
committed by Ingo Molnar
parent 794ee1baee
commit 1b1dcc1b57
113 changed files with 563 additions and 573 deletions
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24
fs/ocfs2/alloc.c
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@@ -966,7 +966,7 @@ static int ocfs2_truncate_log_append(struct ocfs2_super *osb,
mlog_entry("start_blk = %"MLFu64", num_clusters = %u\n", start_blk,
num_clusters);
BUG_ON(!down_trylock(&tl_inode->i_sem));
BUG_ON(mutex_trylock(&tl_inode->i_mutex));
start_cluster = ocfs2_blocks_to_clusters(osb->sb, start_blk);
@@ -1108,7 +1108,7 @@ bail:
return status;
}
/* Expects you to already be holding tl_inode->i_sem */
/* Expects you to already be holding tl_inode->i_mutex */
static int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
{
int status;
@@ -1123,7 +1123,7 @@ static int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
mlog_entry_void();
BUG_ON(!down_trylock(&tl_inode->i_sem));
BUG_ON(mutex_trylock(&tl_inode->i_mutex));
di = (struct ocfs2_dinode *) tl_bh->b_data;
tl = &di->id2.i_dealloc;
@@ -1198,9 +1198,9 @@ int ocfs2_flush_truncate_log(struct ocfs2_super *osb)
int status;
struct inode *tl_inode = osb->osb_tl_inode;
down(&tl_inode->i_sem);
mutex_lock(&tl_inode->i_mutex);
status = __ocfs2_flush_truncate_log(osb);
up(&tl_inode->i_sem);
mutex_unlock(&tl_inode->i_mutex);
return status;
}
@@ -1363,7 +1363,7 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb,
mlog(0, "cleanup %u records from %"MLFu64"\n", num_recs,
tl_copy->i_blkno);
down(&tl_inode->i_sem);
mutex_lock(&tl_inode->i_mutex);
for(i = 0; i < num_recs; i++) {
if (ocfs2_truncate_log_needs_flush(osb)) {
status = __ocfs2_flush_truncate_log(osb);
@@ -1395,7 +1395,7 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb,
}
bail_up:
up(&tl_inode->i_sem);
mutex_unlock(&tl_inode->i_mutex);
mlog_exit(status);
return status;
@@ -1840,7 +1840,7 @@ start:
mlog(0, "clusters_to_del = %u in this pass\n", clusters_to_del);
down(&tl_inode->i_sem);
mutex_lock(&tl_inode->i_mutex);
tl_sem = 1;
/* ocfs2_truncate_log_needs_flush guarantees us at least one
* record is free for use. If there isn't any, we flush to get
@@ -1875,7 +1875,7 @@ start:
goto bail;
}
up(&tl_inode->i_sem);
mutex_unlock(&tl_inode->i_mutex);
tl_sem = 0;
ocfs2_commit_trans(handle);
@@ -1890,7 +1890,7 @@ bail:
ocfs2_schedule_truncate_log_flush(osb, 1);
if (tl_sem)
up(&tl_inode->i_sem);
mutex_unlock(&tl_inode->i_mutex);
if (handle)
ocfs2_commit_trans(handle);
@@ -1994,7 +1994,7 @@ int ocfs2_prepare_truncate(struct ocfs2_super *osb,
goto bail;
}
down(&ext_alloc_inode->i_sem);
mutex_lock(&ext_alloc_inode->i_mutex);
(*tc)->tc_ext_alloc_inode = ext_alloc_inode;
status = ocfs2_meta_lock(ext_alloc_inode,
@@ -2026,7 +2026,7 @@ static void ocfs2_free_truncate_context(struct ocfs2_truncate_context *tc)
if (tc->tc_ext_alloc_locked)
ocfs2_meta_unlock(tc->tc_ext_alloc_inode, 1);
up(&tc->tc_ext_alloc_inode->i_sem);
mutex_unlock(&tc->tc_ext_alloc_inode->i_mutex);
iput(tc->tc_ext_alloc_inode);
}