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patch 2ea55c01e0c5dfead8699484b0bae2a375b1f61c fixed CIFS clobbering the
global fops structure for some per mount setting, by duplicating and having
2 fops structs. However the write to the fops was left behind, which is a
NOP in practice (due to the fact that we KNOW the fops has that field set
to NULL already due to the duplication). So remove it... In addition, another
instance of the same bug was forgotten in november.
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Pointed out by Leo Comitale
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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when CONFIG_CIFS_STATS2 is on (helps in debugging performance)
Signed-off-by: Steve French <sfrench@us.ibm.com>
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better performance debugging.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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memcpy. Part 1
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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assembling smb requests when setuids and Linux protocol extensions enabled
and in checking more matching sessions in multiuser mount mode.
Pointed out by Shaggy.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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the request queue. Also periodically wakeup response_q so threads can
check if stuck requests have timed out. Workaround Windows server illegal smb
length on transact2 findfirst response.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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disabled. Also set mode, uid, gid better on mkdir and create for the
case when Unix Extensions is not enabled and setuids is enabled. This is
necessary to fix the hole in which chown could be allowed for non-root
users in some cases if root mounted, and also to display the mode and uid
properly in some cases.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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fix cifs negative dentries so they are freed faster (not requiring
umount or readdir e.g.) so the client recognizes the new file on
the server more quickly.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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so it does not return EACCESS (unless server really returns that).
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Fix the case in which readdir reset file type when SFU mount option
specified.
Also fix sfu related functions to not request EAs (xattrs) when not
configured in Kconfig
Signed-off-by: Steve French <sfrench@us.ibm.com>
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writev and aio_write to flush properly.
This is Christoph's patch merged with the new nobrl file operations
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
From: Christoph Hellwig <hch@lst.de>
- support vectored and async aio ops unconditionally - this is above
the pagecache and transparent to the fs
- remove cifs_read_wrapper. it was only doing silly checks and
calling generic_file_write in all cases.
- use do_sync_read/do_sync_write as read/write operations. They call
->readv/->writev which we now always implemente.
- add the filemap_fdatawrite calls to writev/aio_write which were
missing previously compared to plain write. no idea what the point
behind them is, but let's be consistent at least..
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Steven French <sfrench@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
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FIFOs) created by SFU (part 2 of 2).
Thanks to Martin Koeppe for useful analysis.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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(and a ppc64 compiler warning)
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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created by SFU (part 1 of 2).
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Following Shaggy's suggestion, do a better job on the unicode string
handling routines in cifs in specifying that the wchar_t are really
little endian widechars (__le16).
Signed-off-by: Steve French <sfrench@us.ibm.com>
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for all mounts just that particular mount.
Found by Arjan Vand de Ven
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Kconfig option for CIFS upcall.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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This is the fs/ part of the big kfree cleanup patch.
Remove pointless checks for NULL prior to calling kfree() in fs/.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Add cifs extended stats configure option and reduce experimental code.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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unaligned structures coming in off the wire
gcc on arm processors generates very odd code with pragma pack specified -
although it does pack the structures in some sense - it does not allow you
to access unaligned elements in nested structures at the right offset as other
architectures do. Oddly enough though, specifying the structures as packed
the long way - one by one with the packed attribute does work. Rather than
fighting over whether this is a gcc bug or some obscure side effect
of pragma pack, it is easier to do what most (all but 96 other places in
the kernel) do - and replace pragma pack with dozens of attribute(packed)
structure qualifiers. Much more verbose ... but at least it works.
Signed-off-by: David Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com> CG: -----------------------------------------------------------------------
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need to get in ahead of it that depend on that file handle. Fixes
occassional bad file handle errors on write with heavy use multiple process
cases.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French (sfrench@us.ibm.com)
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New cifs_writepages routine was not updated bytes written in cifs stats.
Also added ability to clear /proc/fs/cifs/Stats by writing (0 or 1) to it.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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was turned on).
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French (sfrench@us.ibm.com)
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Continue implementation of cifs umount begin to allow force unmounts of
cifs mounts.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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illegal RFC1001 length (which had caused the lock to block forever
until killed).
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Signed-off-by: Steve French (sfrench@us.ibm.com)
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ever longer amounts (up to 15 seconds). This improves performance
especially when using large wsize.
Signed-off-by: Steve French (sfrench@us.ibm.com)
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These changes to debug code and new stats are helpful in
debugging potential tcp performance/configuration problems under cifs.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Steve French (sfrench@us.ibm.com)
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This allows cifs_writepages to send data in larger chunks from the page
cache, without requiring larger memory allocations in other cases.
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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