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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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6
include/linux/nfsd/nfsfh.h
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@@ -294,7 +294,7 @@ fill_post_wcc(struct svc_fh *fhp)
/*
* Lock a file handle/inode
* NOTE: both fh_lock and fh_unlock are done "by hand" in
* vfs.c:nfsd_rename as it needs to grab 2 i_sem's at once
* vfs.c:nfsd_rename as it needs to grab 2 i_mutex's at once
* so, any changes here should be reflected there.
*/
static inline void
@@ -317,7 +317,7 @@ fh_lock(struct svc_fh *fhp)
}
inode = dentry->d_inode;
down(&inode->i_sem);
mutex_lock(&inode->i_mutex);
fill_pre_wcc(fhp);
fhp->fh_locked = 1;
}
@@ -333,7 +333,7 @@ fh_unlock(struct svc_fh *fhp)
if (fhp->fh_locked) {
fill_post_wcc(fhp);
up(&fhp->fh_dentry->d_inode->i_sem);
mutex_unlock(&fhp->fh_dentry->d_inode->i_mutex);
fhp->fh_locked = 0;
}
}