AcoSail/kernel_optimize_test
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[CIFS] Remove calls to to take f_owner.lock

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CIFS takes/releases f_owner.lock - why?  It does not change anything in the
fowner state.  Remove this locking.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Ingo Molnar 2006-06-26 13:47:59 +00:00 committed by Steve French
parent cd49b492fe
commit 124a27fe32
1 changed files with 0 additions and 9 deletions
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9
fs/cifs/file.c
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@ -110,7 +110,6 @@ static inline int cifs_open_inode_helper(struct inode *inode, struct file *file,
&pCifsInode->openFileList);
}
write_unlock(&GlobalSMBSeslock);
write_unlock(&file->f_owner.lock);
if (pCifsInode->clientCanCacheRead) {
/* we have the inode open somewhere else
no need to discard cache data */
@ -287,7 +286,6 @@ int cifs_open(struct inode *inode, struct file *file)
goto out;
}
pCifsFile = cifs_init_private(file->private_data, inode, file, netfid);
write_lock(&file->f_owner.lock);
write_lock(&GlobalSMBSeslock);
list_add(&pCifsFile->tlist, &pTcon->openFileList);
@ -298,7 +296,6 @@ int cifs_open(struct inode *inode, struct file *file)
&oplock, buf, full_path, xid);
} else {
write_unlock(&GlobalSMBSeslock);
write_unlock(&file->f_owner.lock);
}
if (oplock & CIFS_CREATE_ACTION) {
@ -477,7 +474,6 @@ int cifs_close(struct inode *inode, struct file *file)
pTcon = cifs_sb->tcon;
if (pSMBFile) {
pSMBFile->closePend = TRUE;
write_lock(&file->f_owner.lock);
if (pTcon) {
/* no sense reconnecting to close a file that is
already closed */
@ -492,23 +488,18 @@ int cifs_close(struct inode *inode, struct file *file)
the struct would be in each open file,
but this should give enough time to
clear the socket */
write_unlock(&file->f_owner.lock);
cERROR(1,("close with pending writes"));
msleep(timeout);
write_lock(&file->f_owner.lock);
timeout *= 4;
}
write_unlock(&file->f_owner.lock);
rc = CIFSSMBClose(xid, pTcon,
pSMBFile->netfid);
write_lock(&file->f_owner.lock);
}
}
write_lock(&GlobalSMBSeslock);
list_del(&pSMBFile->flist);
list_del(&pSMBFile->tlist);
write_unlock(&GlobalSMBSeslock);
write_unlock(&file->f_owner.lock);
kfree(pSMBFile->search_resume_name);
kfree(file->private_data);
file->private_data = NULL;