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-rw-r--r--fs/bio.c9
-rw-r--r--fs/cifs/CHANGES3
-rw-r--r--fs/cifs/cifsglob.h2
-rw-r--r--fs/cifs/cifspdu.h6
-rw-r--r--fs/cifs/cifsproto.h7
-rw-r--r--fs/cifs/cifssmb.c360
-rw-r--r--fs/cifs/connect.c8
-rw-r--r--fs/cifs/inode.c3
-rw-r--r--fs/cifs/misc.c2
-rw-r--r--fs/cifs/xattr.c8
-rw-r--r--fs/partitions/check.c7
-rw-r--r--fs/proc/kmsg.c14
-rw-r--r--fs/seq_file.c130
13 files changed, 286 insertions, 273 deletions
diff --git a/fs/bio.c b/fs/bio.c
index 88094afc29e..dc17afd672e 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -507,10 +507,8 @@ int bio_get_nr_vecs(struct block_device *bdev)
int nr_pages;
nr_pages = ((queue_max_sectors(q) << 9) + PAGE_SIZE - 1) >> PAGE_SHIFT;
- if (nr_pages > queue_max_phys_segments(q))
- nr_pages = queue_max_phys_segments(q);
- if (nr_pages > queue_max_hw_segments(q))
- nr_pages = queue_max_hw_segments(q);
+ if (nr_pages > queue_max_segments(q))
+ nr_pages = queue_max_segments(q);
return nr_pages;
}
@@ -575,8 +573,7 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
* make this too complex.
*/
- while (bio->bi_phys_segments >= queue_max_phys_segments(q)
- || bio->bi_phys_segments >= queue_max_hw_segments(q)) {
+ while (bio->bi_phys_segments >= queue_max_segments(q)) {
if (retried_segments)
return 0;
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 49503d2edc7..bc0025cdd1c 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,6 +1,7 @@
Version 1.62
------------
-Add sockopt=TCP_NODELAY mount option.
+Add sockopt=TCP_NODELAY mount option. EA (xattr) routines hardened
+to more strictly handle corrupt frames.
Version 1.61
------------
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index ed751bb657d..a1c817eb291 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -205,7 +205,7 @@ struct cifsUidInfo {
struct cifsSesInfo {
struct list_head smb_ses_list;
struct list_head tcon_list;
- struct semaphore sesSem;
+ struct mutex session_mutex;
#if 0
struct cifsUidInfo *uidInfo; /* pointer to user info */
#endif
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 3877737f96a..14d036d8db1 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -415,10 +415,10 @@ struct smb_hdr {
__u8 WordCount;
} __attribute__((packed));
/* given a pointer to an smb_hdr retrieve the value of byte count */
-#define BCC(smb_var) (*(__u16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount)))
-#define BCC_LE(smb_var) (*(__le16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount)))
+#define BCC(smb_var) (*(__u16 *)((char *)(smb_var) + sizeof(struct smb_hdr) + (2 * (smb_var)->WordCount)))
+#define BCC_LE(smb_var) (*(__le16 *)((char *)(smb_var) + sizeof(struct smb_hdr) + (2 * (smb_var)->WordCount)))
/* given a pointer to an smb_hdr retrieve the pointer to the byte area */
-#define pByteArea(smb_var) ((unsigned char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount) + 2)
+#define pByteArea(smb_var) ((unsigned char *)(smb_var) + sizeof(struct smb_hdr) + (2 * (smb_var)->WordCount) + 2)
/*
* Computer Name Length (since Netbios name was length 16 with last byte 0x20)
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 5646727e33f..88e2bc44ac5 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -363,13 +363,10 @@ extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
__u32 filter, struct file *file, int multishot,
const struct nls_table *nls_codepage);
extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
- const unsigned char *searchName, char *EAData,
+ const unsigned char *searchName,
+ const unsigned char *ea_name, char *EAData,
size_t bufsize, const struct nls_table *nls_codepage,
int remap_special_chars);
-extern ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon,
- const unsigned char *searchName, const unsigned char *ea_name,
- unsigned char *ea_value, size_t buf_size,
- const struct nls_table *nls_codepage, int remap_special_chars);
extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon,
const char *fileName, const char *ea_name,
const void *ea_value, const __u16 ea_value_len,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 941441d3e38..9d17df3e076 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -170,19 +170,19 @@ cifs_reconnect_tcon(struct cifsTconInfo *tcon, int smb_command)
* need to prevent multiple threads trying to simultaneously
* reconnect the same SMB session
*/
- down(&ses->sesSem);
+ mutex_lock(&ses->session_mutex);
if (ses->need_reconnect)
rc = cifs_setup_session(0, ses, nls_codepage);
/* do we need to reconnect tcon? */
if (rc || !tcon->need_reconnect) {
- up(&ses->sesSem);
+ mutex_unlock(&ses->session_mutex);
goto out;
}
mark_open_files_invalid(tcon);
rc = CIFSTCon(0, ses, tcon->treeName, tcon, nls_codepage);
- up(&ses->sesSem);
+ mutex_unlock(&ses->session_mutex);
cFYI(1, ("reconnect tcon rc = %d", rc));
if (rc)
@@ -700,13 +700,13 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
if (!ses || !ses->server)
return -EIO;
- down(&ses->sesSem);
+ mutex_lock(&ses->session_mutex);
if (ses->need_reconnect)
goto session_already_dead; /* no need to send SMBlogoff if uid
already closed due to reconnect */
rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB);
if (rc) {
- up(&ses->sesSem);
+ mutex_unlock(&ses->session_mutex);
return rc;
}
@@ -721,7 +721,7 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
pSMB->AndXCommand = 0xFF;
rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0);
session_already_dead:
- up(&ses->sesSem);
+ mutex_unlock(&ses->session_mutex);
/* if session dead then we do not need to do ulogoff,
since server closed smb session, no sense reporting
@@ -5269,22 +5269,34 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
cifs_buf_release(pSMB);
return rc;
}
+
#ifdef CONFIG_CIFS_XATTR
+/*
+ * Do a path-based QUERY_ALL_EAS call and parse the result. This is a common
+ * function used by listxattr and getxattr type calls. When ea_name is set,
+ * it looks for that attribute name and stuffs that value into the EAData
+ * buffer. When ea_name is NULL, it stuffs a list of attribute names into the
+ * buffer. In both cases, the return value is either the length of the
+ * resulting data or a negative error code. If EAData is a NULL pointer then
+ * the data isn't copied to it, but the length is returned.
+ */
ssize_t
CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
- const unsigned char *searchName,
- char *EAData, size_t buf_size,
- const struct nls_table *nls_codepage, int remap)
+ const unsigned char *searchName, const unsigned char *ea_name,
+ char *EAData, size_t buf_size,
+ const struct nls_table *nls_codepage, int remap)
{
/* BB assumes one setup word */
TRANSACTION2_QPI_REQ *pSMB = NULL;
TRANSACTION2_QPI_RSP *pSMBr = NULL;
int rc = 0;
int bytes_returned;
- int name_len;
+ int list_len;
+ struct fealist *ea_response_data;
struct fea *temp_fea;
char *temp_ptr;
- __u16 params, byte_count;
+ char *end_of_smb;
+ __u16 params, byte_count, data_offset;
cFYI(1, ("In Query All EAs path %s", searchName));
QAllEAsRetry:
@@ -5294,22 +5306,22 @@ QAllEAsRetry:
return rc;
if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len =
+ list_len =
cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
PATH_MAX, nls_codepage, remap);
- name_len++; /* trailing null */
- name_len *= 2;
+ list_len++; /* trailing null */
+ list_len *= 2;
} else { /* BB improve the check for buffer overruns BB */
- name_len = strnlen(searchName, PATH_MAX);
- name_len++; /* trailing null */
- strncpy(pSMB->FileName, searchName, name_len);
+ list_len = strnlen(searchName, PATH_MAX);
+ list_len++; /* trailing null */
+ strncpy(pSMB->FileName, searchName, list_len);
}
- params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
+ params = 2 /* level */ + 4 /* reserved */ + list_len /* includes NUL */;
pSMB->TotalDataCount = 0;
pSMB->MaxParameterCount = cpu_to_le16(2);
/* BB find exact max SMB PDU from sess structure BB */
- pSMB->MaxDataCount = cpu_to_le16(4000);
+ pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -5334,237 +5346,117 @@ QAllEAsRetry:
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
cFYI(1, ("Send error in QueryAllEAs = %d", rc));
- } else { /* decode response */
- rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+ goto QAllEAsOut;
+ }
- /* BB also check enough total bytes returned */
- /* BB we need to improve the validity checking
- of these trans2 responses */
- if (rc || (pSMBr->ByteCount < 4))
- rc = -EIO; /* bad smb */
- /* else if (pFindData){
- memcpy((char *) pFindData,
- (char *) &pSMBr->hdr.Protocol +
- data_offset, kl);
- }*/ else {
- /* check that length of list is not more than bcc */
- /* check that each entry does not go beyond length
- of list */
- /* check that each element of each entry does not
- go beyond end of list */
- __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
- struct fealist *ea_response_data;
- rc = 0;
- /* validate_trans2_offsets() */
- /* BB check if start of smb + data_offset > &bcc+ bcc */
- ea_response_data = (struct fealist *)
- (((char *) &pSMBr->hdr.Protocol) +
- data_offset);
- name_len = le32_to_cpu(ea_response_data->list_len);
- cFYI(1, ("ea length %d", name_len));
- if (name_len <= 8) {
- /* returned EA size zeroed at top of function */
- cFYI(1, ("empty EA list returned from server"));
- } else {
- /* account for ea list len */
- name_len -= 4;
- temp_fea = ea_response_data->list;
- temp_ptr = (char *)temp_fea;
- while (name_len > 0) {
- __u16 value_len;
- name_len -= 4;
- temp_ptr += 4;
- rc += temp_fea->name_len;
- /* account for prefix user. and trailing null */
- rc = rc + 5 + 1;
- if (rc < (int)buf_size) {
- memcpy(EAData, "user.", 5);
- EAData += 5;
- memcpy(EAData, temp_ptr,
- temp_fea->name_len);
- EAData += temp_fea->name_len;
- /* null terminate name */
- *EAData = 0;
- EAData = EAData + 1;
- } else if (buf_size == 0) {
- /* skip copy - calc size only */
- } else {
- /* stop before overrun buffer */
- rc = -ERANGE;
- break;
- }
- name_len -= temp_fea->name_len;
- temp_ptr += temp_fea->name_len;
- /* account for trailing null */
- name_len--;
- temp_ptr++;
- value_len =
- le16_to_cpu(temp_fea->value_len);
- name_len -= value_len;
- temp_ptr += value_len;
- /* BB check that temp_ptr is still
- within the SMB BB*/
-
- /* no trailing null to account for
- in value len */
- /* go on to next EA */
- temp_fea = (struct fea *)temp_ptr;
- }
- }
- }
+
+ /* BB also check enough total bytes returned */
+ /* BB we need to improve the validity checking
+ of these trans2 responses */
+
+ rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+ if (rc || (pSMBr->ByteCount < 4)) {
+ rc = -EIO; /* bad smb */
+ goto QAllEAsOut;
}
- cifs_buf_release(pSMB);
- if (rc == -EAGAIN)
- goto QAllEAsRetry;
- return (ssize_t)rc;
-}
+ /* check that length of list is not more than bcc */
+ /* check that each entry does not go beyond length
+ of list */
+ /* check that each element of each entry does not
+ go beyond end of list */
+ /* validate_trans2_offsets() */
+ /* BB check if start of smb + data_offset > &bcc+ bcc */
-ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon,
- const unsigned char *searchName, const unsigned char *ea_name,
- unsigned char *ea_value, size_t buf_size,
- const struct nls_table *nls_codepage, int remap)
-{
- TRANSACTION2_QPI_REQ *pSMB = NULL;
- TRANSACTION2_QPI_RSP *pSMBr = NULL;
- int rc = 0;
- int bytes_returned;
- int name_len;
- struct fea *temp_fea;
- char *temp_ptr;
- __u16 params, byte_count;
+ data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
+ ea_response_data = (struct fealist *)
+ (((char *) &pSMBr->hdr.Protocol) + data_offset);
- cFYI(1, ("In Query EA path %s", searchName));
-QEARetry:
- rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
- (void **) &pSMBr);
- if (rc)
- return rc;
+ list_len = le32_to_cpu(ea_response_data->list_len);
+ cFYI(1, ("ea length %d", list_len));
+ if (list_len <= 8) {
+ cFYI(1, ("empty EA list returned from server"));
+ goto QAllEAsOut;
+ }
- if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len =
- cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
- PATH_MAX, nls_codepage, remap);
- name_len++; /* trailing null */
- name_len *= 2;
- } else { /* BB improve the check for buffer overruns BB */
- name_len = strnlen(searchName, PATH_MAX);
- name_len++; /* trailing null */
- strncpy(pSMB->FileName, searchName, name_len);
+ /* make sure list_len doesn't go past end of SMB */
+ end_of_smb = (char *)pByteArea(&pSMBr->hdr) + BCC(&pSMBr->hdr);
+ if ((char *)ea_response_data + list_len > end_of_smb) {
+ cFYI(1, ("EA list appears to go beyond SMB"));
+ rc = -EIO;
+ goto QAllEAsOut;
}
- params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
- pSMB->TotalDataCount = 0;
- pSMB->MaxParameterCount = cpu_to_le16(2);
- /* BB find exact max SMB PDU from sess structure BB */
- pSMB->MaxDataCount = cpu_to_le16(4000);
- pSMB->MaxSetupCount = 0;
- pSMB->Reserved = 0;
- pSMB->Flags = 0;
- pSMB->Timeout = 0;
- pSMB->Reserved2 = 0;
- pSMB->ParameterOffset = cpu_to_le16(offsetof(
- struct smb_com_transaction2_qpi_req, InformationLevel) - 4);
- pSMB->DataCount = 0;
- pSMB->DataOffset = 0;
- pSMB->SetupCount = 1;
- pSMB->Reserved3 = 0;
- pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
- byte_count = params + 1 /* pad */ ;
- pSMB->TotalParameterCount = cpu_to_le16(params);
- pSMB->ParameterCount = pSMB->TotalParameterCount;
- pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS);
- pSMB->Reserved4 = 0;
- pSMB->hdr.smb_buf_length += byte_count;
- pSMB->ByteCount = cpu_to_le16(byte_count);
+ /* account for ea list len */
+ list_len -= 4;
+ temp_fea = ea_response_data->list;
+ temp_ptr = (char *)temp_fea;
+ while (list_len > 0) {
+ unsigned int name_len;
+ __u16 value_len;
+
+ list_len -= 4;
+ temp_ptr += 4;
+ /* make sure we can read name_len and value_len */
+ if (list_len < 0) {
+ cFYI(1, ("EA entry goes beyond length of list"));
+ rc = -EIO;
+ goto QAllEAsOut;
+ }
- rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, 0);
- if (rc) {
- cFYI(1, ("Send error in Query EA = %d", rc));
- } else { /* decode response */
- rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+ name_len = temp_fea->name_len;
+ value_len = le16_to_cpu(temp_fea->value_len);
+ list_len -= name_len + 1 + value_len;
+ if (list_len < 0) {
+ cFYI(1, ("EA entry goes beyond length of list"));
+ rc = -EIO;
+ goto QAllEAsOut;
+ }
- /* BB also check enough total bytes returned */
- /* BB we need to improve the validity checking
- of these trans2 responses */
- if (rc || (pSMBr->ByteCount < 4))
- rc = -EIO; /* bad smb */
- /* else if (pFindData){
- memcpy((char *) pFindData,
- (char *) &pSMBr->hdr.Protocol +
- data_offset, kl);
- }*/ else {
- /* check that length of list is not more than bcc */
- /* check that each entry does not go beyond length
- of list */
- /* check that each element of each entry does not
- go beyond end of list */
- __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
- struct fealist *ea_response_data;
- rc = -ENODATA;
- /* validate_trans2_offsets() */
- /* BB check if start of smb + data_offset > &bcc+ bcc*/
- ea_response_data = (struct fealist *)
- (((char *) &pSMBr->hdr.Protocol) +
- data_offset);
- name_len = le32_to_cpu(ea_response_data->list_len);
- cFYI(1, ("ea length %d", name_len));
- if (name_len <= 8) {
- /* returned EA size zeroed at top of function */
- cFYI(1, ("empty EA list returned from server"));
- } else {
- /* account for ea list len */
- name_len -= 4;
- temp_fea = ea_response_data->list;
- temp_ptr = (char *)temp_fea;
- /* loop through checking if we have a matching
- name and then return the associated value */
- while (name_len > 0) {
- __u16 value_len;
- name_len -= 4;
- temp_ptr += 4;
- value_len =
- le16_to_cpu(temp_fea->value_len);
- /* BB validate that value_len falls within SMB,
- even though maximum for name_len is 255 */
- if (memcmp(temp_fea->name, ea_name,
- temp_fea->name_len) == 0) {
- /* found a match */
- rc = value_len;
- /* account for prefix user. and trailing null */
- if (rc <= (int)buf_size) {
- memcpy(ea_value,
- temp_fea->name+temp_fea->name_len+1,
- rc);
- /* ea values, unlike ea
- names, are not null
- terminated */
- } else if (buf_size == 0) {
- /* skip copy - calc size only */
- } else {
- /* stop before overrun buffer */
- rc = -ERANGE;
- }
- break;
- }
- name_len -= temp_fea->name_len;
- temp_ptr += temp_fea->name_len;
- /* account for trailing null */
- name_len--;
- temp_ptr++;
- name_len -= value_len;
- temp_ptr += value_len;
- /* No trailing null to account for in
- value_len. Go on to next EA */
- temp_fea = (struct fea *)temp_ptr;
+ if (ea_name) {
+ if (strncmp(ea_name, temp_ptr, name_len) == 0) {
+ temp_ptr += name_len + 1;
+ rc = value_len;
+ if (buf_size == 0)
+ goto QAllEAsOut;
+ if ((size_t)value_len > buf_size) {
+ rc = -ERANGE;
+ goto QAllEAsOut;
}
+ memcpy(EAData, temp_ptr, value_len);
+ goto QAllEAsOut;
+ }
+ } else {
+ /* account for prefix user. and trailing null */
+ rc += (5 + 1 + name_len);
+ if (rc < (int) buf_size) {
+ memcpy(EAData, "user.", 5);
+ EAData += 5;
+ memcpy(EAData, temp_ptr, name_len);
+ EAData += name_len;
+ /* null terminate name */
+ *EAData = 0;
+ ++EAData;
+ } else if (buf_size == 0) {
+ /* skip copy - calc size only */
+ } else {
+ /* stop before overrun buffer */
+ rc = -ERANGE;
+ break;
}
}
+ temp_ptr += name_len + 1 + value_len;
+ temp_fea = (struct fea *)temp_ptr;
}
+
+ /* didn't find the named attribute */
+ if (ea_name)
+ rc = -ENODATA;
+
+QAllEAsOut:
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
- goto QEARetry;
+ goto QAllEAsRetry;
return (ssize_t)rc;
}
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 2e9e09ca0e3..45eb6cba793 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2388,13 +2388,13 @@ try_mount_again:
*/
cifs_put_tcp_session(srvTcp);
- down(&pSesInfo->sesSem);
+ mutex_lock(&pSesInfo->session_mutex);
if (pSesInfo->need_reconnect) {
cFYI(1, ("Session needs reconnect"));
rc = cifs_setup_session(xid, pSesInfo,
cifs_sb->local_nls);
}
- up(&pSesInfo->sesSem);
+ mutex_unlock(&pSesInfo->session_mutex);
} else if (!rc) {
cFYI(1, ("Existing smb sess not found"));
pSesInfo = sesInfoAlloc();
@@ -2437,12 +2437,12 @@ try_mount_again:
}
pSesInfo->linux_uid = volume_info->linux_uid;
pSesInfo->overrideSecFlg = volume_info->secFlg;
- down(&pSesInfo->sesSem);
+ mutex_lock(&pSesInfo->session_mutex);
/* BB FIXME need to pass vol->secFlgs BB */
rc = cifs_setup_session(xid, pSesInfo,
cifs_sb->local_nls);
- up(&pSesInfo->sesSem);
+ mutex_unlock(&pSesInfo->session_mutex);
}
/* search for existing tcon to this server share */
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index e3fda978f48..8bdbc818164 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -111,6 +111,7 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
cifs_i->delete_pending = fattr->cf_flags & CIFS_FATTR_DELETE_PENDING;
+ cifs_i->server_eof = fattr->cf_eof;
/*
* Can't safely change the file size here if the client is writing to
* it due to potential races.
@@ -366,7 +367,7 @@ static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path,
char ea_value[4];
__u32 mode;
- rc = CIFSSMBQueryEA(xid, cifs_sb->tcon, path, "SETFILEBITS",
+ rc = CIFSSMBQAllEAs(xid, cifs_sb->tcon, path, "SETFILEBITS",
ea_value, 4 /* size of buf */, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index d27d4ec6579..d1474996a81 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -79,7 +79,7 @@ sesInfoAlloc(void)
++ret_buf->ses_count;
INIT_LIST_HEAD(&ret_buf->smb_ses_list);
INIT_LIST_HEAD(&ret_buf->tcon_list);
- init_MUTEX(&ret_buf->sesSem);
+ mutex_init(&ret_buf->session_mutex);
}
return ret_buf;
}
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index a75afa3dd9e..3e2ef0de120 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -244,7 +244,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
/* revalidate/getattr then populate from inode */
} /* BB add else when above is implemented */
ea_name += 5; /* skip past user. prefix */
- rc = CIFSSMBQueryEA(xid, pTcon, full_path, ea_name, ea_value,
+ rc = CIFSSMBQAllEAs(xid, pTcon, full_path, ea_name, ea_value,
buf_size, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
} else if (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4) == 0) {
@@ -252,7 +252,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
goto get_ea_exit;
ea_name += 4; /* skip past os2. prefix */
- rc = CIFSSMBQueryEA(xid, pTcon, full_path, ea_name, ea_value,
+ rc = CIFSSMBQAllEAs(xid, pTcon, full_path, ea_name, ea_value,
buf_size, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
} else if (strncmp(ea_name, POSIX_ACL_XATTR_ACCESS,
@@ -364,8 +364,8 @@ ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size)
/* if proc/fs/cifs/streamstoxattr is set then
search server for EAs or streams to
returns as xattrs */
- rc = CIFSSMBQAllEAs(xid, pTcon, full_path, data, buf_size,
- cifs_sb->local_nls,
+ rc = CIFSSMBQAllEAs(xid, pTcon, full_path, NULL, data,
+ buf_size, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 64bc8998ac9..e8865c11777 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -412,9 +412,10 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
pdev = part_to_dev(p);
p->start_sect = start;
- p->alignment_offset = queue_sector_alignment_offset(disk->queue, start);
- p->discard_alignment = queue_sector_discard_alignment(disk->queue,
- start);
+ p->alignment_offset =
+ queue_limit_alignment_offset(&disk->queue->limits, start);
+ p->discard_alignment =
+ queue_limit_discard_alignment(&disk->queue->limits, start);
p->nr_sects = len;
p->partno = partno;
p->policy = get_disk_ro(disk);
diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c
index 7ca78346d3f..cfe90a48a6e 100644
--- a/fs/proc/kmsg.c
+++ b/fs/proc/kmsg.c
@@ -12,37 +12,37 @@
#include <linux/poll.h>
#include <linux/proc_fs.h>
#include <linux/fs.h>
+#include <linux/syslog.h>
#include <asm/uaccess.h>
#include <asm/io.h>
extern wait_queue_head_t log_wait;
-extern int do_syslog(int type, char __user *bug, int count);
-
static int kmsg_open(struct inode * inode, struct file * file)
{
- return do_syslog(1,NULL,0);
+ return do_syslog(SYSLOG_ACTION_OPEN, NULL, 0, SYSLOG_FROM_FILE);
}
static int kmsg_release(struct inode * inode, struct file * file)
{
- (void) do_syslog(0,NULL,0);
+ (void) do_syslog(SYSLOG_ACTION_CLOSE, NULL, 0, SYSLOG_FROM_FILE);
return 0;
}
static ssize_t kmsg_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
- if ((file->f_flags & O_NONBLOCK) && !do_syslog(9, NULL, 0))
+ if ((file->f_flags & O_NONBLOCK) &&
+ !do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_FILE))
return -EAGAIN;
- return do_syslog(2, buf, count);
+ return do_syslog(SYSLOG_ACTION_READ, buf, count, SYSLOG_FROM_FILE);
}
static unsigned int kmsg_poll(struct file *file, poll_table *wait)
{
poll_wait(file, &log_wait, wait);
- if (do_syslog(9, NULL, 0))
+ if (do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_FILE))
return POLLIN | POLLRDNORM;
return 0;
}
diff --git a/fs/seq_file.c b/fs/seq_file.c
index eae7d9dbf3f..5afd554efad 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -674,7 +674,6 @@ struct list_head *seq_list_start(struct list_head *head, loff_t pos)
return NULL;
}
-
EXPORT_SYMBOL(seq_list_start);
struct list_head *seq_list_start_head(struct list_head *head, loff_t pos)
@@ -684,7 +683,6 @@ struct list_head *seq_list_start_head(struct list_head *head, loff_t pos)
return seq_list_start(head, pos - 1);
}
-
EXPORT_SYMBOL(seq_list_start_head);
struct list_head *seq_list_next(void *v, struct list_head *head, loff_t *ppos)
@@ -695,5 +693,131 @@ struct list_head *seq_list_next(void *v, struct list_head *head, loff_t *ppos)
++*ppos;
return lh == head ? NULL : lh;
}
-
EXPORT_SYMBOL(seq_list_next);
+
+/**
+ * seq_hlist_start - start an iteration of a hlist
+ * @head: the head of the hlist
+ * @pos: the start position of the sequence
+ *
+ * Called at seq_file->op->start().
+ */
+struct hlist_node *seq_hlist_start(struct hlist_head *head, loff_t pos)
+{
+ struct hlist_node *node;
+
+ hlist_for_each(node, head)
+ if (pos-- == 0)
+ return node;
+ return NULL;
+}
+EXPORT_SYMBOL(seq_hlist_start);
+
+/**
+ * seq_hlist_start_head - start an iteration of a hlist
+ * @head: the head of the hlist
+ * @pos: the start position of the sequence
+ *
+ * Called at seq_file->op->start(). Call this function if you want to
+ * print a header at the top of the output.
+ */
+struct hlist_node *seq_hlist_start_head(struct hlist_head *head, loff_t pos)
+{
+ if (!pos)
+ return SEQ_START_TOKEN;
+
+ return seq_hlist_start(head, pos - 1);
+}
+EXPORT_SYMBOL(seq_hlist_start_head);
+
+/**
+ * seq_hlist_next - move to the next position of the hlist
+ * @v: the current iterator
+ * @head: the head of the hlist
+ * @pos: the current posision
+ *
+ * Called at seq_file->op->next().
+ */
+struct hlist_node *seq_hlist_next(void *v, struct hlist_head *head,
+ loff_t *ppos)
+{
+ struct hlist_node *node = v;
+
+ ++*ppos;
+ if (v == SEQ_START_TOKEN)
+ return head->first;
+ else
+ return node->next;
+}
+EXPORT_SYMBOL(seq_hlist_next);
+
+/**
+ * seq_hlist_start_rcu - start an iteration of a hlist protected by RCU
+ * @head: the head of the hlist
+ * @pos: the start position of the sequence
+ *
+ * Called at seq_file->op->start().
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as hlist_add_head_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+struct hlist_node *seq_hlist_start_rcu(struct hlist_head *head,
+ loff_t pos)
+{
+ struct hlist_node *node;
+
+ __hlist_for_each_rcu(node, head)
+ if (pos-- == 0)
+ return node;
+ return NULL;
+}
+EXPORT_SYMBOL(seq_hlist_start_rcu);
+
+/**
+ * seq_hlist_start_head_rcu - start an iteration of a hlist protected by RCU
+ * @head: the head of the hlist
+ * @pos: the start position of the sequence
+ *
+ * Called at seq_file->op->start(). Call this function if you want to
+ * print a header at the top of the output.
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as hlist_add_head_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+struct hlist_node *seq_hlist_start_head_rcu(struct hlist_head *head,
+ loff_t pos)
+{
+ if (!pos)
+ return SEQ_START_TOKEN;
+
+ return seq_hlist_start_rcu(head, pos - 1);
+}
+EXPORT_SYMBOL(seq_hlist_start_head_rcu);
+
+/**
+ * seq_hlist_next_rcu - move to the next position of the hlist protected by RCU
+ * @v: the current iterator
+ * @head: the head of the hlist
+ * @pos: the current posision
+ *
+ * Called at seq_file->op->next().
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as hlist_add_head_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+struct hlist_node *seq_hlist_next_rcu(void *v,
+ struct hlist_head *head,
+ loff_t *ppos)
+{
+ struct hlist_node *node = v;
+
+ ++*ppos;
+ if (v == SEQ_START_TOKEN)
+ return rcu_dereference(head->first);
+ else
+ return rcu_dereference(node->next);
+}
+EXPORT_SYMBOL(seq_hlist_next_rcu);
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-05 21:29:54 +0000