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2005-04-28[PATCH] cifs: Do not sleep interruptible after socket connect failureSteve French
.. since it can be due to pending kill. Update readme information to better describe cifs umount Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Do not init smb requests or block when sending requestsSteve French
if cifsd thread is no longer running to demultixplex responses. Do not send FindClose request when FindFirst failed without reaching end of search. Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: handle termination of cifs oplockd kernel threadSteve French
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Fix mapping of EMLINK caseSteve French
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Handle case of multiple trans2 responses for one SMB request ↵Steve French
(part 2 of 2) Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: cleanup various long linesSteve French
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Handle multiple response transact2 part 1 of 2Steve French
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Ease memory pressure, do not use large buffers in byte range ↵Steve French
lock requests. Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: missing semicolon from previous fixSteve French
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Better handle errors on second socket recv message callSteve French
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: improve check for search entry going beyond end of SMB transactSteve French
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Fix caching problemSteve French
pointed out by Dave Stahl and Vince Negri in which cifs can update the last modify time on a server modified file without invalidating the local cached data due to an intervening readdir. Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: remove cifs_kcalloc and check for NULL return on kcalloc in ↵Steve French
session initialization Suggested by: Adrian Bunk and Dave Miller Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Missing initialization for largeBuf flag left out of previous ↵Steve French
changeset Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Do not use large smb buffers in response pathSteve French
unless response is larger than 256 bytes. This cuts more than 1/3 of the large memory allocations that cifs does and should be a huge help to memory pressure under stress. Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: cleanup of ifdefs usage so it is more consistentSteve French
And fix to not needlessly send new POSIX QFSInfo when server does not explicitly claim support for the new protocol extensions. Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: CIFS ioctl needed by umount.cifs utilitySteve French
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Do not interpret oplock break responses as responses to an ↵Steve French
unrelated command .. even if the multiplex ids match. Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Fix PPC64 compile errorSteve French
.. and do not double endian convert the special characters whem mounted with mapchars mount parm. Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: character mapping of special characters (part 3 of 3)Steve French
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: finish up of special character mapping capable unicode ↵Steve French
conversion routine part 2 of 3 Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: remove a few redundant null pointer checks, and cleanup misc ↵Steve French
source formatting Mostly suggested by Jesper Juhl Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Add new mount parm mapcharsSteve French
For handling seven special characters that shells use for filenames. This first parts implements conversions from Unicode. Signed-off-by: Steve French Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: fix rare oops in cifs_closeSteve French
Protect access to cifs file list in cifs_close path Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Fix multiuser packet signing to use the right sequence number ↵Steve French
and mac session key Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Enable ioctl support in POSIX extensions to handle lsattrSteve French
remove sparse warnings, unnecessary pad in QueryFileInfo and redundant function define. Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Gracefully turn off serverino (when serverino is enabled on mount)Steve French
Old servers such as NT4 do not support this level of FindFirst (and retry with a lower infolevel) Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: add support for chattr/lsattr in new CIFS POSIX extensionsSteve French
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Only send POSIX ACL calls to server if server claims to ↵Steve French
support that capability bit Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] Fix error recovery path for arch_setup_additional_pagesRoland McGrath
If arch_setup_additional_pages fails, the error path will do some double-frees. This fixes it. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-27[PATCH] NFS4: Don't use __user with compat_uptr_tDavid Howells
The attached patch removes __user from compat_uptr_t types in the NFS4 mount 32-bit->64-bit compatibility structures. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-25[PATCH] isofs includes sanitizedAl Viro
fs/isofs includes trimmed down to something resembling sanity. Kernel-only parts of linux/iso_fs.h and entire linux/iso_fs_{sb,i}.h moved to fs/isofs/isofs.h. A lot of useless #include in fs/isofs/*.c killed. Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-25[PATCH] fs/aio.c: make some code staticAdrian Bunk
This patch makes some needlessly global code static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-18[PATCH] kobject/hotplug split - block corekay.sievers@vrfy.org
kobject_add() and kobject_del() don't emit hotplug events anymore. Do it ourselves if we are finished populating the device directory. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-18[PATCH] sysfs: add sysfs_chmod_file()Kay Sievers
sysfs: allow changing the permissions for already created attributes Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-18[PATCH] Add 32-bit compatibility for NFSv4 mountDavid Howells
This adds 32-bit compatibility for mounting an NFSv4 mount on a 64-bit kernel (such as happens with PPC64). The problem is that the mount data for the NFS4 mount process includes auxilliary data pointers, probably because the NFS4 mount data may conceivably exceed PAGE_SIZE in size - thus breaking against the hard limit imposed by sys_mount(). Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-17[PATCH] revert fs/char_dev.c CONFIG_BASE_FULL changeDavid Brownell
This reverts a fs/char_dev.c patch that was merged into BK on March 3. The problem is that it breaks things ... __register_chrdev_region() has a block of code, commented "temporary" for over two years now, which fails rudely during PCMCIA initialization or other register_chrdev() calls, because it doesn't "degrade to linked list". This keeps whole subsystems from working. A real fix to that "temporary" code should be possible, using some better scheme to allocate major numbers, but it's not something I want to spend time on just now. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] nfsd4: fix struct file leakNeilBrown
We were failing to close on an error path, resulting in a leak of struct files which could take a v4 server down fairly quickly.... So call nfs4_close_delegation instead of just open-coding parts of it. Simplify the cleanup on delegation failure while we're at it. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] nfsd4: callback create rpc client returnsNeilBrown
rpc_create_clnt and friends return errors, not NULL, on failure. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] nfsd: clear signals before exiting the nfsd() threadNeilBrown
Fixes the error "RPC: failed to contact portmap (errno -512)." when the server later tries to unregister from the portmapper. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] jbd dirty buffer leak fixakpm@osdl.org
This fixes the lots-of-fsx-linux-instances-cause-a-slow-leak bug. It's been there since 2.6.6, caused by: ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.5/2.6.5-mm4/broken-out/jbd-move-locked-buffers.patch That patch moves under-writeout ordered-data buffers onto a separate journal list during commit. It took out the old code which was based on a single list. The old code (necessarily) had logic which would restart I/O against buffers which had been redirtied while they were on the committing transaction's t_sync_datalist list. The new code only writes buffers once, ignoring redirtyings by a later transaction, which is good. But over on the truncate side of things, in journal_unmap_buffer(), we're treating buffers on the t_locked_list as inviolable things which belong to the committing transaction, and we just leave them alone during concurrent truncate-vs-commit. The net effect is that when truncate tries to invalidate a page whose buffers are on t_locked_list and have been redirtied, journal_unmap_buffer() just leaves those buffers alone. truncate will remove the page from its mapping and we end up with an anonymous clean page with dirty buffers, which is an illegal state for a page. The JBD commit will not clean those buffers as they are removed from t_locked_list. The VM (try_to_free_buffers) cannot reclaim these pages. The patch teaches journal_unmap_buffer() about buffers which are on the committing transaction's t_locked_list. These buffers have been written and I/O has completed. We can take them off the transaction and undirty them within the context of journal_invalidatepage()->journal_unmap_buffer(). Acked-by: "Stephen C. Tweedie" <sct@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] Direct IO async short read fixDaniel McNeil
The direct I/O code is mapping the read request to the file system block. If the file size was not on a block boundary, the result would show the the read reading past EOF. This was only happening for the AIO case. The non-AIO case truncates the result to match file size (in direct_io_worker). This patch does the same thing for the AIO case, it truncates the result to match the file size if the read reads past EOF. When I/O completes the result can be truncated to match the file size without using i_size_read(), thus the aio result now matches the number of bytes read to the end of file. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] undo do_readv_writev() behavior changeDave Hansen
Bugme bug 4326: http://bugme.osdl.org/show_bug.cgi?id=4326 reports: executing the systemcall readv with Bad argument ->len == -1) it gives out error EFAULT instead of EINVAL Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] quota: possible bug in quota format v2 supportNiu YaWei
Don't put root block of quota tree to the free list (when quota file is completely empty). That should not actually happen anyway (somebody should get accounted for the filesystem root and so quota file should never be empty) but better prevent it here than solve magical quota file corruption. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] quota: fix possible oops on quotaoffJan Kara
Remove dquot structures from quota file on quotaon - quota code does not expect them to be there. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] ext2 corruption - regression between 2.6.9 and 2.6.10Bernard Blackham
Whilst trying to stress test a Promise SX8 card, we stumbled across some nasty filesystem corruption in ext2. Our tests involved creating an ext2 partition, mounting, running several concurrent fsx's over it, umounting, and fsck'ing, all scripted[1]. The fsck would always return with errors. This regression was traced back to a change between 2.6.9 and 2.6.10, which moves the functionality of ext2_put_inode into ext2_clear_inode. The attached patch reverses this change, and eliminated the source of corruption. Mingming Cao <cmm@us.ibm.com> said: I think his patch for ext2 is correct. The corruption on ext3 is not the same issue he saw on ext2. I believe that's the race between discard reservation and reservation in-use that we already fixed it in 2.6.12- rc1. For the problem related to ext2, at the time when we design reservation for ext3, we decide we only need to discard the reservation at the last file close, so we have ext3_discard_reservation on iput_final- >ext3_clear_inode. The ext2 handle discard preallocation differently at that time, it discard the preallocation at each iput(), not in input_final(), so we think it's unnecessary to thrash it so frequently, and the right thing to do, as we did for ext3 reservation, discard preallocation on last iput(). So we moved the ext2_discard_preallocation from ext2_put_inode(0 to ext2_clear_inode. Since ext2 preallocation is doing pre-allocation on disk, so it is possible that at the unmount time, someone is still hold the reference of the inode, so the preallocation for a file is not discard yet, so we still mark those blocks allocated on disk, while they are not actually in the inode's block map, so fsck will catch/fix that error later. This is not a issue for ext3, as ext3 reservation(pre-allocation) is done in memory. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] AYSNC IO using singals other than SIGIOBharath Ramesh
A question on sigwaitinfo based IO mechanism in multithreaded applications. I am trying to use RT signals to notify me of IO events using RT signals instead of SIGIO in a multithreaded applications. I noticed that there was some discussion on lkml during november 1999 with the subject of the discussion as "Signal driven IO". In the thread I noticed that RT signals were being delivered to the worker thread. I am running 2.6.10 kernel and I am trying to use the very same mechanism and I find that only SIGIO being propogated to the worker threads and RT signals only being propogated to the main thread and not the worker threads where I actually want them to be propogated too. On further inspection I found that the following patch which I have attached solves the problem. I am not sure if this is a bug or feature in the kernel. Roland McGrath <roland@redhat.com> said: This relates only to fcntl F_SETSIG, which is a Linux extension. So there is no POSIX issue. When changing various things like the normal SIGIO signalling to do group signals, I was concerned strictly with the POSIX semantics and generally avoided touching things in the domain of Linux inventions. That's why I didn't change this when I changed the call right next to it. There is no reason I can see that F_SETSIG-requested signals shouldn't use a group signal like normal SIGIO does. I'm happy to ACK this patch, there is nothing wrong with its change to the semantics in my book. But neither POSIX nor I care a whit what F_SETSIG does. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] ppc64: Improve mapping of vDSOBenjamin Herrenschmidt
This patch reworks the way the ppc64 is mapped in user memory by the kernel to make it more robust against possible collisions with executable segments. Instead of just whacking a VMA at 1Mb, I now use get_unmapped_area() with a hint, and I moved the mapping of the vDSO to after the mapping of the various ELF segments and of the interpreter, so that conflicts get caught properly (it still has to be before create_elf_tables since the later will fill the AT_SYSINFO_EHDR with the proper address). While I was at it, I also changed the 32 and 64 bits vDSO's to link at their "natural" address of 1Mb instead of 0. This is the address where they are normally mapped in absence of conflict. By doing so, it should be possible to properly prelink one it's been verified to work on glibc. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] meminfo: add Cached underflow checkMartin Hicks
Working on some code lately I've been getting huge values for "Cached". The cause is that get_page_cache_size() is an approximate value, and for a sufficiently small returned value of get_page_cache_size() the value underflows. Signed-off-by: Martin Hicks <mort@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16[PATCH] end_buffer_write_sync() avoid pointless assignmentsakpm@osdl.org
Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>