- 25 9月, 2012 23 次提交
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由 Pavel Shilovsky 提交于
Currently CIFS code accept read/write ops on mandatory locked area when two processes use the same file descriptor - it's wrong. Fix this by serializing io and brlock operations on the inode. Signed-off-by: NPavel Shilovsky <pshilovsky@etersoft.ru> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Pavel Shilovsky 提交于
and allow several processes to walk through the lock list and read can_cache_brlcks value if they are not going to modify them. Signed-off-by: NPavel Shilovsky <pshilovsky@etersoft.ru> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@etersoft.ru>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org>
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由 Pavel Shilovsky 提交于
Now we need to lock/unlock a spinlock while processing brlock ops on the inode. Move brlocks of a fid to a separate list and attach all such lists to the inode. This let us not hold a spinlock. Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org>
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由 Jeff Layton 提交于
The array is no longer needed. We just need a single kvec to hold the header for signature checking. Signed-off-by: NJeff Layton <jlayton@redhat.com>
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由 Jeff Layton 提交于
Replace the "marshal_iov" function with a "read_into_pages" function. That function will copy the read data off the socket and into the pages array, kmapping and reading pages one at a time. Signed-off-by: NJeff Layton <jlayton@redhat.com>
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由 Jeff Layton 提交于
We'll need an array to put into a smb_rqst, so convert this into an array instead of (ab)using the lru list_head. Signed-off-by: NJeff Layton <jlayton@redhat.com>
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由 Jeff Layton 提交于
Eventually, we're going to want to append a list of pages to cifs_readdata instead of a list of kvecs. To prepare for that, turn the kvec array allocation into a separate one and just keep a pointer to it in the readdata. Signed-off-by: NJeff Layton <jlayton@redhat.com>
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由 Jeff Layton 提交于
Reviewed-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
Acked-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Pavel Shilovsky 提交于
This is help us to extend the code for future protocols that can use another fid mechanism (as SMB2 that has it divided into two parts: persistent and violatile). Also rename variables and refactor the code around the changes. Reviewed-by: NJeff Layton <jlayton@samba.org> Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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- 07 9月, 2012 1 次提交
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由 Pavel Shilovsky 提交于
Cc: <stable@vger.kernel.org> Signed-off-by: NPavel Shilovsky <pshilovsky@etersoft.ru> Signed-off-by: NSteve French <smfrench@gmail.com>
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- 26 7月, 2012 1 次提交
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由 Jeff Layton 提交于
The readpages bug is a regression that was introduced in 6993f74a. This also fixes a couple of similar bugs in the uncached read and write codepaths. Also, prevent this sort of thing in the future by having cifsFileInfo_get take the spinlock itself, and adding a _locked variant for use in places that are already holding the lock. The _put code has always done that so this makes for a less confusing interface. Cc: <stable@vger.kernel.org> # 3.5.x Reviewed-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <smfrench@gmail.com>
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- 25 7月, 2012 1 次提交
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由 Pavel Shilovsky 提交于
Since both CIFS and SMB2 use ses->capabilities (server->capabilities) field but flags are different we should make such checks protocol independent. Reviewed-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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- 24 7月, 2012 3 次提交
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由 Pavel Shilovsky 提交于
Acked-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Jeff Layton 提交于
struct file_lock is pretty large, so we really don't want that on the stack in a potentially long call chain. Reorganize the arguments to CIFSSMBPosixLock to eliminate the need for that. Eliminate the get_flag and simply use a non-NULL pLockInfo to indicate that this is a "get" operation. In order to do that, need to add a new loff_t argument for the start_offset. Reported-by: NAl Viro <viro@ZenIV.linux.org.uk> Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <smfrench@gmail.com>
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由 Jeff Layton 提交于
Those macros add a newline on their own, so there's not any need to embed one in the message itself. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <smfrench@gmail.com>
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- 02 6月, 2012 2 次提交
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Pavel Shilovsky 提交于
when cifs_reconnect sets maxBuf to 0 and we try to calculate a size of memory we need to store locks. Signed-off-by: NPavel Shilovsky <pshilovsky@samba.org> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 23 5月, 2012 1 次提交
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由 Shirish Pargaonkar 提交于
While traversing the linked list of open file handles, if the identfied file handle is invalid, a reopen is attempted and if it fails, we resume traversing where we stopped and cifs can oops while accessing invalid next element, for list might have changed. So mark the invalid file handle and attempt reopen if no valid file handle is found in rest of the list. If reopen fails, move the invalid file handle to the end of the list and start traversing the list again from the begining. Repeat this four times before giving up and returning an error if file reopen keeps failing. Cc: <stable@vger.kernel.org> Signed-off-by: NShirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 17 5月, 2012 8 次提交
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <piastry@etersoft.ru>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <piastry@etersoft.ru>
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由 Pavel Shilovsky 提交于
Signed-off-by: NPavel Shilovsky <piastry@etersoft.ru>
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由 Pavel Shilovsky 提交于
to handle SMB2 lock type field further. Acked-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NPavel Shilovsky <piastry@etersoft.ru>
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由 Pavel Shilovsky 提交于
CIFS brlock cache can be used by several file handles if we have a write-caching lease on the file that is supported by SMB2 protocol. Prepate the code to handle this situation correctly by sorting brlocks by a fid to easily push them in portions when lease break comes. Signed-off-by: NPavel Shilovsky <piastry@etersoft.ru>
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由 Jeff Layton 提交于
Convert cifs_iovec_read to use async I/O. This also raises the limit on the rsize for uncached reads. We first allocate a set of pages to hold the replies, then issue the reads in parallel and then collect the replies and copy the results into the iovec. A possible future optimization would be to kmap and inline the iovec buffers and read the data directly from the socket into that. That would require some rather complex conversion of the iovec into a kvec however. Signed-off-by: NJeff Layton <jlayton@redhat.com>
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由 Jeff Layton 提交于
We'll need this same bit of code for the uncached case. Signed-off-by: NJeff Layton <jlayton@redhat.com>
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由 Jeff Layton 提交于
This isn't strictly necessary for the async readpages code, but the uncached version will need to be able to collect the replies after issuing the calls. Add a kref to cifs_readdata and use change the code to take and put references appropriately. Signed-off-by: NJeff Layton <jlayton@redhat.com>
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