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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 11:16:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 11:16:29 -0700
commit6fd4e7f7744bd7859ca3cae19c4613252ebb6bff (patch)
tree2d8bd695f467d991f4de5fedf3d210e5f39c093f /fs/cifs
parent5958cc49ed2961a059d92ae55afeeaba64a783a0 (diff)
parenta6f74e80f271b19ea709cbda55e8eb67e9ffccf2 (diff)
downloadlinux-6fd4e7f7744bd7859ca3cae19c4613252ebb6bff.tar.bz2
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French: "Three cifs/smb3 fixes - including two for stable" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: cifs: don't check for failure from mempool_alloc() Do not return number of bytes written for ioctl CIFS_IOC_COPYCHUNK_FILE Fix match_prepath()
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/connect.c14
-rw-r--r--fs/cifs/ioctl.c3
-rw-r--r--fs/cifs/misc.c14
-rw-r--r--fs/cifs/smb2transport.c30
-rw-r--r--fs/cifs/transport.c32
5 files changed, 40 insertions, 53 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index b3c9d8c310f2..0f2781677ccc 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2912,16 +2912,14 @@ match_prepath(struct super_block *sb, struct cifs_mnt_data *mnt_data)
{
struct cifs_sb_info *old = CIFS_SB(sb);
struct cifs_sb_info *new = mnt_data->cifs_sb;
+ bool old_set = old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH;
+ bool new_set = new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH;
- if (old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) {
- if (!(new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH))
- return 0;
- /* The prepath should be null terminated strings */
- if (strcmp(new->prepath, old->prepath))
- return 0;
-
+ if (old_set && new_set && !strcmp(new->prepath, old->prepath))
return 1;
- }
+ else if (!old_set && !new_set)
+ return 1;
+
return 0;
}
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 265c45fe4ea5..7f4bba574930 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -74,7 +74,8 @@ static long cifs_ioctl_copychunk(unsigned int xid, struct file *dst_file,
rc = cifs_file_copychunk_range(xid, src_file.file, 0, dst_file, 0,
src_inode->i_size, 0);
-
+ if (rc > 0)
+ rc = 0;
out_fput:
fdput(src_file);
out_drop_write:
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index d3fb11529ed9..843787850435 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -167,13 +167,11 @@ cifs_buf_get(void)
/* clear the first few header bytes */
/* for most paths, more is cleared in header_assemble */
- if (ret_buf) {
- memset(ret_buf, 0, buf_size + 3);
- atomic_inc(&bufAllocCount);
+ memset(ret_buf, 0, buf_size + 3);
+ atomic_inc(&bufAllocCount);
#ifdef CONFIG_CIFS_STATS2
- atomic_inc(&totBufAllocCount);
+ atomic_inc(&totBufAllocCount);
#endif /* CONFIG_CIFS_STATS2 */
- }
return ret_buf;
}
@@ -201,15 +199,13 @@ cifs_small_buf_get(void)
albeit slightly larger than necessary and maxbuffersize
defaults to this and can not be bigger */
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);*/
- atomic_inc(&smBufAllocCount);
+ atomic_inc(&smBufAllocCount);
#ifdef CONFIG_CIFS_STATS2
- atomic_inc(&totSmBufAllocCount);
+ atomic_inc(&totSmBufAllocCount);
#endif /* CONFIG_CIFS_STATS2 */
- }
return ret_buf;
}
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
index 506b67fc93d9..c69ec96e92ac 100644
--- a/fs/cifs/smb2transport.c
+++ b/fs/cifs/smb2transport.c
@@ -538,23 +538,19 @@ smb2_mid_entry_alloc(const struct smb2_sync_hdr *shdr,
}
temp = mempool_alloc(cifs_mid_poolp, GFP_NOFS);
- if (temp == NULL)
- return temp;
- else {
- memset(temp, 0, sizeof(struct mid_q_entry));
- temp->mid = le64_to_cpu(shdr->MessageId);
- temp->pid = current->pid;
- temp->command = shdr->Command; /* Always LE */
- temp->when_alloc = jiffies;
- temp->server = server;
-
- /*
- * The default is for the mid to be synchronous, so the
- * default callback just wakes up the current task.
- */
- temp->callback = cifs_wake_up_task;
- temp->callback_data = current;
- }
+ memset(temp, 0, sizeof(struct mid_q_entry));
+ temp->mid = le64_to_cpu(shdr->MessageId);
+ temp->pid = current->pid;
+ temp->command = shdr->Command; /* Always LE */
+ temp->when_alloc = jiffies;
+ temp->server = server;
+
+ /*
+ * The default is for the mid to be synchronous, so the
+ * default callback just wakes up the current task.
+ */
+ temp->callback = cifs_wake_up_task;
+ temp->callback_data = current;
atomic_inc(&midCount);
temp->mid_state = MID_REQUEST_ALLOCATED;
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index f6e13a977fc8..4d64b5b8fc9c 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -55,26 +55,22 @@ AllocMidQEntry(const struct smb_hdr *smb_buffer, struct TCP_Server_Info *server)
}
temp = mempool_alloc(cifs_mid_poolp, GFP_NOFS);
- if (temp == NULL)
- return temp;
- else {
- memset(temp, 0, sizeof(struct mid_q_entry));
- temp->mid = get_mid(smb_buffer);
- temp->pid = current->pid;
- temp->command = cpu_to_le16(smb_buffer->Command);
- cifs_dbg(FYI, "For smb_command %d\n", smb_buffer->Command);
+ memset(temp, 0, sizeof(struct mid_q_entry));
+ temp->mid = get_mid(smb_buffer);
+ temp->pid = current->pid;
+ temp->command = cpu_to_le16(smb_buffer->Command);
+ cifs_dbg(FYI, "For smb_command %d\n", smb_buffer->Command);
/* do_gettimeofday(&temp->when_sent);*/ /* easier to use jiffies */
- /* when mid allocated can be before when sent */
- temp->when_alloc = jiffies;
- temp->server = server;
+ /* when mid allocated can be before when sent */
+ temp->when_alloc = jiffies;
+ temp->server = server;
- /*
- * The default is for the mid to be synchronous, so the
- * default callback just wakes up the current task.
- */
- temp->callback = cifs_wake_up_task;
- temp->callback_data = current;
- }
+ /*
+ * The default is for the mid to be synchronous, so the
+ * default callback just wakes up the current task.
+ */
+ temp->callback = cifs_wake_up_task;
+ temp->callback_data = current;
atomic_inc(&midCount);
temp->mid_state = MID_REQUEST_ALLOCATED;