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2005-10-03[CIFS] Add writepages support to shrink memory usage on writes,Steve French
eliminate the double copy, and improve cifs write performance and help the server by upping the typical write size from 4K to 16K (or even larger if wsize set explicitly) for servers which support this. Part 1 of 2 Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-09-22[CIFS] Various minor bigendian fixes and sparse level 2 warning message fixesSteve French
Most important of these fixes mapchars on bigendian and a few statfs fields Signed-off-by: Shaggy (shaggy@austin.ibm.com) Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-09-21[CIFS] Add support for legacy servers part nine. statfs (df and du) is nowSteve French
functional, and the length check is fixed so readdir does not throw a warning message when windows me messes up the response to FindFirst of an empty dir (with only . and ..). Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-09-20[CIFS] Add support for legacy servers part eight. Write fixes for WindowsSteve French
ME, and do not set ctime unless explicitly requested with atime and/or mtime (it gets thrown away by most servers anyway as there is no way to set this via posix). Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-09-18[CIFS] Add support for legacy servers part seven. Fix open for write,Steve French
begin implementation of Win9x style set file size via open then write of zero bytes. Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-09-15[CIFS] Add support for legacy servers part six. Fix read syntax soSteve French
we do not request more than negotiated buffer size even if buffer size is small (smaller than one page) Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-09-15[CIFS] Fix readdir caching when unlink removes file in current searchSteve French
buffer, and this is followed by a rewind search to just before the deleted entry. Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-09-15[CIFS] Fix compiler warningsSteve French
Fix some compiler warnings noticed on x64 by me and ppc64 by Shaggy Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-09-06[CIFS] Update cifs TODO list with additional new features thatSteve French
have been requested. Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-09-06Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.gitSteve French
2005-09-05Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Linus Torvalds
2005-09-05[PATCH] uml: fixes performance regression in activate_mm and thus exec()Paolo 'Blaisorblade' Giarrusso
Normally, activate_mm() is called from exec(), and thus it used to be a no-op because we use a completely new "MM context" on the host (for instance, a new process), and so we didn't need to flush any "TLB entries" (which for us are the set of memory mappings for the host process from the virtual "RAM" file). Kernel threads, instead, are usually handled in a different way. So, when for AIO we call use_mm(), things used to break and so Benjamin implemented activate_mm(). However, that is only needed for AIO, and could slow down exec() inside UML, so be smart: detect being called for AIO (via PF_BORROWED_MM) and do the full flush only in that situation. Comment also the caller so that people won't go breaking UML without noticing. I also rely on the caller's locks for testing current->flags. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> CC: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-05[PATCH] Generic VFS fallback for security xattrsStephen Smalley
This patch modifies the VFS setxattr, getxattr, and listxattr code to fall back to the security module for security xattrs if the filesystem does not support xattrs natively. This allows security modules to export the incore inode security label information to userspace even if the filesystem does not provide xattr storage, and eliminates the need to individually patch various pseudo filesystem types to provide such access. The patch removes the existing xattr code from devpts and tmpfs as it is then no longer needed. The patch restructures the code flow slightly to reduce duplication between the normal path and the fallback path, but this should only have one user-visible side effect - a program may get -EACCES rather than -EOPNOTSUPP if policy denied access but the filesystem didn't support the operation anyway. Note that the post_setxattr hook call is not needed in the fallback case, as the inode_setsecurity hook call handles the incore inode security state update directly. In contrast, we do call fsnotify in both cases. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-05[PATCH] add /proc/pid/smapsMauricio Lin
Add a "smaps" entry to /proc/pid: show howmuch memory is resident in each mapping. People that want to perform a memory consumption analysing can use it mainly if someone needs to figure out which libraries can be reduced for embedded systems. So the new features are the physical size of shared and clean [or dirty]; private and clean [or dirty]. Take a look the example below: # cat /proc/4576/smaps 08048000-080dc000 r-xp /bin/bash Size: 592 KB Rss: 500 KB Shared_Clean: 500 KB Shared_Dirty: 0 KB Private_Clean: 0 KB Private_Dirty: 0 KB 080dc000-080e2000 rw-p /bin/bash Size: 24 KB Rss: 24 KB Shared_Clean: 0 KB Shared_Dirty: 0 KB Private_Clean: 0 KB Private_Dirty: 24 KB 080e2000-08116000 rw-p Size: 208 KB Rss: 208 KB Shared_Clean: 0 KB Shared_Dirty: 0 KB Private_Clean: 0 KB Private_Dirty: 208 KB b7e2b000-b7e34000 r-xp /lib/tls/libnss_files-2.3.2.so Size: 36 KB Rss: 12 KB Shared_Clean: 12 KB Shared_Dirty: 0 KB Private_Clean: 0 KB Private_Dirty: 0 KB ... (Includes a cleanup from "Richard Purdie" <rpurdie@rpsys.net>) From: Torsten Foertsch <torsten.foertsch@gmx.net> show_smap calls first show_map and then prints its additional information to the seq_file. show_map checks if all it has to print fits into the buffer and if yes marks the current vma as written. While that is correct for show_map it is not for show_smap. Here the vma should be marked as written only after the additional information is also written. The attached patch cures the problem. It moves the functionality of the show_map function to a new function show_map_internal that is called with an additional struct mem_size_stats* argument. Then show_map calls show_map_internal with NULL as struct mem_size_stats* whereas show_smap calls it with a real pointer. Now the final if (m->count < m->size) /* vma is copied successfully */ m->version = (vma != get_gate_vma(task))? vma->vm_start: 0; is done only if the whole entry fits into the buffer. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-05[PATCH] /proc/<pid>/numa_maps to show on which nodes pages resideChristoph Lameter
This patch was recently discussed on linux-mm: http://marc.theaimsgroup.com/?t=112085728500002&r=1&w=2 I inherited a large code base from Ray for page migration. There was a small patch in there that I find to be very useful since it allows the display of the locality of the pages in use by a process. I reworked that patch and came up with a /proc/<pid>/numa_maps that gives more information about the vma's of a process. numa_maps is indexes by the start address found in /proc/<pid>/maps. F.e. with this patch you can see the page use of the "getty" process: margin:/proc/12008 # cat maps 00000000-00004000 r--p 00000000 00:00 0 2000000000000000-200000000002c000 r-xp 00000000 08:04 516 /lib/ld-2.3.3.so 2000000000038000-2000000000040000 rw-p 00028000 08:04 516 /lib/ld-2.3.3.so 2000000000040000-2000000000044000 rw-p 2000000000040000 00:00 0 2000000000058000-2000000000260000 r-xp 00000000 08:04 54707842 /lib/tls/libc.so.6.1 2000000000260000-2000000000268000 ---p 00208000 08:04 54707842 /lib/tls/libc.so.6.1 2000000000268000-2000000000274000 rw-p 00200000 08:04 54707842 /lib/tls/libc.so.6.1 2000000000274000-2000000000280000 rw-p 2000000000274000 00:00 0 2000000000280000-20000000002b4000 r--p 00000000 08:04 9126923 /usr/lib/locale/en_US.utf8/LC_CTYPE 2000000000300000-2000000000308000 r--s 00000000 08:04 60071467 /usr/lib/gconv/gconv-modules.cache 2000000000318000-2000000000328000 rw-p 2000000000318000 00:00 0 4000000000000000-4000000000008000 r-xp 00000000 08:04 29576399 /sbin/mingetty 6000000000004000-6000000000008000 rw-p 00004000 08:04 29576399 /sbin/mingetty 6000000000008000-600000000002c000 rw-p 6000000000008000 00:00 0 [heap] 60000fff7fffc000-60000fff80000000 rw-p 60000fff7fffc000 00:00 0 60000ffffff44000-60000ffffff98000 rw-p 60000ffffff44000 00:00 0 [stack] a000000000000000-a000000000020000 ---p 00000000 00:00 0 [vdso] cat numa_maps 2000000000000000 default MaxRef=43 Pages=11 Mapped=11 N0=4 N1=3 N2=2 N3=2 2000000000038000 default MaxRef=1 Pages=2 Mapped=2 Anon=2 N0=2 2000000000040000 default MaxRef=1 Pages=1 Mapped=1 Anon=1 N0=1 2000000000058000 default MaxRef=43 Pages=61 Mapped=61 N0=14 N1=15 N2=16 N3=16 2000000000268000 default MaxRef=1 Pages=2 Mapped=2 Anon=2 N0=2 2000000000274000 default MaxRef=1 Pages=3 Mapped=3 Anon=3 N0=3 2000000000280000 default MaxRef=8 Pages=3 Mapped=3 N0=3 2000000000300000 default MaxRef=8 Pages=2 Mapped=2 N0=2 2000000000318000 default MaxRef=1 Pages=1 Mapped=1 Anon=1 N2=1 4000000000000000 default MaxRef=6 Pages=2 Mapped=2 N1=2 6000000000004000 default MaxRef=1 Pages=1 Mapped=1 Anon=1 N0=1 6000000000008000 default MaxRef=1 Pages=1 Mapped=1 Anon=1 N0=1 60000fff7fffc000 default MaxRef=1 Pages=1 Mapped=1 Anon=1 N0=1 60000ffffff44000 default MaxRef=1 Pages=1 Mapped=1 Anon=1 N0=1 getty uses ld.so. The first vma is the code segment which is used by 43 other processes and the pages are evenly distributed over the 4 nodes. The second vma is the process specific data portion for ld.so. This is only one page. The display format is: <startaddress> Links to information in /proc/<pid>/map <memory policy> This can be "default" "interleave={}", "prefer=<node>" or "bind={<zones>}" MaxRef= <maximum reference to a page in this vma> Pages= <Nr of pages in use> Mapped= <Nr of pages with mapcount > Anon= <nr of anonymous pages> Nx= <Nr of pages on Node x> The content of the proc-file is self-evident. If this would be tied into the sparsemem system then the contents of this file would not be too useful. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-02[PATCH] uclinux: use MAP_PRIVATE when mmaping code regions in flat binary loaderGreg Ungerer
Use MAP_PRIVATE when calling mmap to get memory for the code region. The flat loader was using MAP_SHARED, but underlying changes to the MMUless mmap means this is now wrong. Signed-off-by: Greg Ungerer <gerg@uclinux.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-01[CRYPTO]: crypto_free_tfm() callers no longer need to check for NULLJesper Juhl
Since the patch to add a NULL short-circuit to crypto_free_tfm() went in, there's no longer any need for callers of that function to check for NULL. This patch removes the redundant NULL checks and also a few similar checks for NULL before calls to kfree() that I ran into while doing the crypto_free_tfm bits. I've succesfuly compile tested this patch, and a kernel with the patch applied boots and runs just fine. When I posted the patch to LKML (and other lists/people on Cc) it drew the following comments : J. Bruce Fields commented "I've no problem with the auth_gss or nfsv4 bits.--b." Sridhar Samudrala said "sctp change looks fine." Herbert Xu signed off on the patch. So, I guess this is ready to be dropped into -mm and eventually mainline. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-01[CRYPTO]: Use CRYPTO_TFM_REQ_MAY_SLEEP where appropriateHerbert Xu
This patch goes through the current users of the crypto layer and sets CRYPTO_TFM_REQ_MAY_SLEEP at crypto_alloc_tfm() where all crypto operations are performed in process context. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-31[CIFS] Add support for legacy servers part 5Steve French
Handle small negotiated read sizes (under 4K) and finish up read and write support. Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-08-30[CIFS] Add support for legacy servers part 4Steve French
Fix WriteX support for old servers which do not support large files. Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-08-30[CIFS] Add nolock synonym (ala nfs) for nobrl to disable sending byte rangeSteve French
locks remotely. Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-08-30[CIFS] Add support for suspendSteve French
cifsd had been preventing software suspend from completing. Signed-off-by: pavel@suse.de Signed-off-by: Steve French <sfrench@us.ibm.com> lightly modified --- fs/cifs/CHANGES | 3 ++- fs/cifs/cifsfs.c | 4 ++++ fs/cifs/connect.c | 2 ++ 3 files changed, 8 insertions(+), 1 deletions(-)
2005-08-30Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.gitSteve French
2005-08-30[CIFS] Remove cifs_sb argument from *build_path_from_dentrySteve French
This argument was added in a recent patch, but is unnecessary, since the superblock is easily obtained from the dentry. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-08-30Merge refs/heads/for-linus from ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/shaggy/jfs-2.6.git
2005-08-29[TCP]: Move the tcp sock states to net/tcp_states.hArnaldo Carvalho de Melo
Lots of places just needs the states, not even linux/tcp.h, where this enum was, needs it. This speeds up development of the refactorings as less sources are rebuilt when things get moved from net/tcp.h. Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-arm.git Linus Torvalds
2005-08-26[PATCH] Fix oops in sysfs_hash_and_remove_file()James Bottomley
The problem arises if an entity in sysfs is created and removed without ever having been made completely visible. In SCSI this is triggered by removing a device while it's initialising. The problem appears to be that because it was never made visible in sysfs, the sysfs dentry has a null d_inode which oopses when a reference is made to it. The solution is simply to check d_inode and assume the object was never made visible (and thus doesn't need deleting) if it's NULL. (akpm: possibly a stopgap for 2.6.13 scsi problems. May not be the long-term fix) Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-26[PATCH] Fix oops in fs/locks.c on close of file with pending locksSteve French
The recent change to locks_remove_flock code in fs/locks.c changes how byte range locks are removed from closing files, which shows up a bug in cifs. The assumption in the cifs code was that the close call sent to the server would remove any pending locks on the server on this file, but that is no longer safe as the fs/locks.c code on the client wants unlock of 0 to PATH_MAX to remove all locks (at least from this client, it is not possible AFAIK to remove all locks from other clients made to the server copy of the file). Note that cifs locks are different from posix locks - and it is not possible to map posix locks perfectly on the wire yet, due to restrictions of the cifs network protocol, even to Samba without adding a new request type to the network protocol (which we plan to do for Samba 3.0.21 within a few months), but the local client will have the correct, posix view, of the lock in most cases. The correct fix for cifs for this would involve a bigger change than I would like to do this late in the 2.6.13-rc cycle - and would involve cifs keeping track of all unmerged (uncoalesced) byte range locks for each remote inode and scanning that list to remove locks that intersect or fall wholly within the range - locks that intersect may have to be reaquired with the smaller, remaining range. Signed-off-by: Steve French <sfrench@us.ibm.com> Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-26[PATCH] hppfs: fix symlink error pathPaolo 'Blaisorblade' Giarrusso
While touching this code I noticed the error handling is bogus, so I fixed it up. I've removed the IS_ERR(proc_dentry) check, which will never trigger and is clearly a typo: we must check proc_file instead. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-26[PATCH] Fixup symlink function pointers for hppfs [for 2.6.13]Paolo 'Blaisorblade' Giarrusso
Update hppfs for the symlink functions prototype change. Yes, I know the code I leave there is still _bogus_, see next patch for this. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-26[PATCH] Document idr_get_new_above() semantics, update inotifyJohn McCutchan
There is an off by one problem with idr_get_new_above. The comment and function name suggest that it will return an id > starting_id, but it actually returned an id >= starting_id, and kernel callers other than inotify treated it as such. The patch below fixes the comment, and fixes inotifys usage. The function name still doesn't match the behaviour, but it never did. Signed-off-by: John McCutchan <ttb@tentacle.dhs.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-24[CIFS] Support for legacy servers part 3 - Add support for Open and mostSteve French
of Read support. Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-08-24[CIFS] Use file instead of dentry in cifs dir_notify structSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-08-24[CIFS] Change notify support part 3Steve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-08-24[CIFS] Missing line from previous patchSteve French
Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-08-24[CIFS] Change notify support part 2Steve French
Signed-off-by: Asser Ferno <asser@diku.dk> Signed-off-by: Steve French <sfrench@us.ibm.com> and lightly modified
2005-08-24[CIFS] Update thanks/contributor list with Miklos SzerediSteve French
(Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> also should have been listed on the last cifs patch fixing some lookup intent handling in cifs) Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-08-24CIFS: Fix typos in fs/cifs/CHANGESSteve French
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-08-24CIFS: Reduce CONFIG_CIFS_STATS ifdefsSteve French
Make cifs_stats code conditional in the header files to avoid ifdefs in the main code. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-08-23[CIFS] Support for mounting to older servers part 2. Add support forSteve French
legacy getattr (lookup). Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-08-22[CIFS] Support for mounting to older, pre-CIFS servers added. ThisSteve French
allows specifying an RFC1001 target "called" name (netbios name of the server, which can now be pecified as mount option "servernetbiosname" but will eventually be passed in automatically on retry of host down error messages caused when server refuses to handle default server name and can not handle port 445). This is an important step, but additional testing and fixup is needed to add remaining function needed for these. Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-08-22[CIFS] Finish up of case-insensitive dentry handling for cifs. ThisSteve French
will eventually (or should eventually) be common code for jfs, smbfs, etc. but in the meantime is small enough and necessary when mounting case insensitive to Windows (nocase). Signed-off-by: Shaggy (shaggy@austin.ibm.com) Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-08-20[CIFS] Make CIFS statistics more accurate and add some stats that wereSteve French
missing. Most importantly SMB reads were undercounted. Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-08-20Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.gitSteve French
2005-08-20Don't allow normal users to set idle IO priorityLinus Torvalds
It has all the normal priority inversion problems. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-20[PATCH] freevxfs: fix breakage introduced by symlink fixesAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-20befs: fix up missed follow_link declaration changeLinus Torvalds
We'd updated the prototype and the return value, but not the function declaration itself.
2005-08-20[ARM] fs/adfs/adfs.h: "extern inline" doesn't make senseAdrian Bunk
"extern inline" doesn't make sense. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-19[PATCH] NFSv4: unbalanced BKL in nfs_atomic_lookup()Steve Dickson
Added missing unlock_kernel() to NFSv4 atomic lookup. Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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