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cifs: don't use GFP_KERNEL with GFP_NOFS

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GFP_KERNEL and GFP_NOFS are mutually exclusive. If you combine them, you end up
with plain GFP_KERNEL which can deadlock in cases where you really want
GFP_NOFS.

Cc: Steve French <sfrench@samba.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Pekka Enberg 2008-09-15 13:22:54 +03:00 committed by Steve French
parent 388e57b275
commit 232087cb73
2 changed files with 3 additions and 6 deletions
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6
fs/cifs/misc.c
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@ -150,8 +150,7 @@ cifs_buf_get(void)
but it may be more efficient to always alloc same size
albeit slightly larger than necessary and maxbuffersize
defaults to this and can not be bigger */
ret_buf = (struct smb_hdr *) mempool_alloc(cifs_req_poolp,
GFP_KERNEL | GFP_NOFS);
ret_buf = mempool_alloc(cifs_req_poolp, GFP_NOFS);
/* clear the first few header bytes */
/* for most paths, more is cleared in header_assemble */
@ -188,8 +187,7 @@ cifs_small_buf_get(void)
but it may be more efficient to always alloc same size
albeit slightly larger than necessary and maxbuffersize
defaults to this and can not be bigger */
ret_buf = (struct smb_hdr *) mempool_alloc(cifs_sm_req_poolp,
GFP_KERNEL | GFP_NOFS);
ret_buf = mempool_alloc(cifs_sm_req_poolp, GFP_NOFS);
if (ret_buf) {
/* No need to clear memory here, cleared in header assemble */
/* memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/

3
fs/cifs/transport.c
View file

@ -50,8 +50,7 @@ AllocMidQEntry(const struct smb_hdr *smb_buffer, struct cifsSesInfo *ses)
return NULL;
}
temp = (struct mid_q_entry *) mempool_alloc(cifs_mid_poolp,
GFP_KERNEL | GFP_NOFS);
temp = mempool_alloc(cifs_mid_poolp, GFP_NOFS);
if (temp == NULL)
return temp;
else {