- 31 1月, 2011 1 次提交
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由 Jeff Layton 提交于
New compiler warnings that I noticed when building a patchset based on recent Fedora kernel: fs/cifs/cifssmb.c: In function 'CIFSSMBSetFileSize': fs/cifs/cifssmb.c:4813:8: warning: variable 'data_offset' set but not used [-Wunused-but-set-variable] fs/cifs/file.c: In function 'cifs_open': fs/cifs/file.c:349:24: warning: variable 'pCifsInode' set but not used [-Wunused-but-set-variable] fs/cifs/file.c: In function 'cifs_partialpagewrite': fs/cifs/file.c:1149:23: warning: variable 'cifs_sb' set but not used [-Wunused-but-set-variable] fs/cifs/file.c: In function 'cifs_iovec_write': fs/cifs/file.c:1740:9: warning: passing argument 6 of 'CIFSSMBWrite2' from incompatible pointer type [enabled by default] fs/cifs/cifsproto.h:337:12: note: expected 'unsigned int *' but argument is of type 'size_t *' fs/cifs/readdir.c: In function 'cifs_readdir': fs/cifs/readdir.c:767:23: warning: variable 'cifs_sb' set but not used [-Wunused-but-set-variable] fs/cifs/cifs_dfs_ref.c: In function 'cifs_dfs_d_automount': fs/cifs/cifs_dfs_ref.c:342:2: warning: 'rc' may be used uninitialized in this function [-Wuninitialized] fs/cifs/cifs_dfs_ref.c:278:6: note: 'rc' was declared here Signed-off-by: NJeff Layton <jlayton@redhat.com> Reviewed-by: NPavel Shilovsky <piastry@etersoft.ru> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 21 1月, 2011 6 次提交
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由 Jeff Layton 提交于
Make sure that CIFSSMBEcho can handle unaligned fields. Also fix a minor bug that causes this warning: fs/cifs/cifssmb.c: In function 'CIFSSMBEcho': fs/cifs/cifssmb.c:740: warning: large integer implicitly truncated to unsigned type ...WordCount is u8, not __le16, so no need to convert it. This patch should apply cleanly on top of the rest of the patchset to clean up unaligned access. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
...and clean up function to reduce indentation. Signed-off-by: NJeff Layton <jlayton@redhat.com> Acked-by: NPavel Shilovsky <piastryyy@gmail.com> Reviewed-by: NShirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
It's possible that when we access the ByteCount that the alignment will be off. Most CPUs deal with that transparently, but there's usually some performance impact. Some CPUs raise an exception on unaligned accesses. Fix this by accessing the byte count using the get_unaligned and put_unaligned inlined functions. While we're at it, fix the types of some of the variables that end up getting returns from these functions. Acked-by: NPavel Shilovsky <piastryyy@gmail.com> Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
Remove fields that are completely unused, and rearrange struct according to recommendations by "pahole". Before: /* size: 1112, cachelines: 18, members: 49 */ /* sum members: 1086, holes: 8, sum holes: 26 */ /* bit holes: 1, sum bit holes: 7 bits */ /* last cacheline: 24 bytes */ After: /* size: 1072, cachelines: 17, members: 42 */ /* sum members: 1065, holes: 3, sum holes: 7 */ /* last cacheline: 48 bytes */ ...savings of 40 bytes per struct on x86_64. 21 bytes by field removal, and 19 by reorganizing to eliminate holes. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
Since we don't time out individual requests anymore, remove the code that we used to use for setting timeouts on different requests. Reviewed-by: NPavel Shilovsky <piastryyy@gmail.com> Reviewed-by: NSuresh Jayaraman <sjayaraman@suse.de> Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
Reviewed-by: NSuresh Jayaraman <sjayaraman@suse.de> Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 20 1月, 2011 1 次提交
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由 Pavel Shilovsky 提交于
When we get oplock break notification we should set the appropriate value of OplockLevel field in oplock break acknowledge according to the oplock level held by the client in this time. As we only can have level II oplock or no oplock in the case of oplock break, we should be aware only about clientCanCacheRead field in cifsInodeInfo structure. Also fix bug connected with wrong interpretation of OplockLevel field during oplock break notification processing. Signed-off-by: NPavel Shilovsky <piastryyy@gmail.com> Cc: <stable@kernel.org> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 10 1月, 2011 1 次提交
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由 Jeff Layton 提交于
I see no real need to leave these sorts of options under an EXPERIMENTAL ifdef. Since you need a mount option to turn this code on, that only blows out the testing matrix. local_leases has been under the EXPERIMENTAL tag for some time, but it's only the mount option that's under this label. Move it out from under this tag. The NTLMSSP code is also under EXPERIMENTAL, but it needs a mount option to turn it on, and in the future any distro will reasonably want this enabled. Go ahead and move it out from under the EXPERIMENTAL tag. Signed-off-by: NJeff Layton <jlayton@redhat.com> Acked-by: NSuresh Jayaraman <sjayaraman@suse.de> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 07 12月, 2010 1 次提交
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由 Jeff Layton 提交于
Some of the code under CONFIG_CIFS_ACL is dependent upon code under CONFIG_CIFS_EXPERIMENTAL, but the Kconfig options don't reflect that dependency. Move more of the ACL code out from under CONFIG_CIFS_EXPERIMENTAL and under CONFIG_CIFS_ACL. Also move find_readable_file out from other any sort of Kconfig option and make it a function normally compiled in. Reported-and-Acked-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 29 10月, 2010 1 次提交
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由 Shirish Pargaonkar 提交于
Need to have cryptkey or server challenge in smb connection (struct TCP_Server_Info) for ntlm and ntlmv2 auth types for which cryptkey (Encryption Key) is supplied just once in Negotiate Protocol response during an smb connection setup for all the smb sessions over that smb connection. For ntlmssp, cryptkey or server challenge is provided for every smb session in type 2 packet of ntlmssp negotiation, the cryptkey provided during Negotiation Protocol response before smb connection does not count. Rename cryptKey to cryptkey and related changes. Signed-off-by: NShirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 21 10月, 2010 1 次提交
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由 Suresh Jayaraman 提交于
cifs_tcp_ses_lock is a rwlock with protects the cifs_tcp_ses_list, server->smb_ses_list and the ses->tcon_list. It also protects a few ref counters in server, ses and tcon. In most cases the critical section doesn't seem to be large, in a few cases where it is slightly large, there seem to be really no benefit from concurrent access. I briefly considered RCU mechanism but it appears to me that there is no real need. Replace it with a spinlock and get rid of the last rwlock in the cifs code. Signed-off-by: NSuresh Jayaraman <sjayaraman@suse.de> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 18 10月, 2010 1 次提交
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由 Jeff Layton 提交于
Convert this lock to a regular spinlock A rwlock_t offers little value here. It's more expensive than a regular spinlock unless you have a fairly large section of code that runs under the read lock and can benefit from the concurrency. Additionally, we need to ensure that the refcounting for files isn't racy and to do that we need to lock areas that can increment it for write. That means that the areas that can actually use a read_lock are very few and relatively infrequently used. While we're at it, change the name to something easier to type, and fix a bug in find_writable_file. cifsFileInfo_put can sleep and shouldn't be called while holding the lock. Signed-off-by: NJeff Layton <jlayton@redhat.com> Reviewed-by: NSuresh Jayaraman <sjayaraman@suse.de> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 15 10月, 2010 1 次提交
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由 Shirish Pargaonkar 提交于
Start calculation auth response within a session. Move/Add pertinet data structures like session key, server challenge and ntlmv2_hash in a session structure. We should do the calculations within a session before copying session key and response over to server data structures because a session setup can fail. Only after a very first smb session succeeds, it copies/makes its session key, session key of smb connection. This key stays with the smb connection throughout its life. 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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- 02 10月, 2010 1 次提交
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由 Jeff Layton 提交于
cifs_reconnect_tcon is called from smb_init. After a successful reconnect, cifs_reconnect_tcon will call reset_cifs_unix_caps. That function will, in turn call CIFSSMBQFSUnixInfo and CIFSSMBSetFSUnixInfo. Those functions also call smb_init. It's possible for the session and tcon reconnect to succeed, and then for another cifs_reconnect to occur before CIFSSMBQFSUnixInfo or CIFSSMBSetFSUnixInfo to be called. That'll cause those functions to call smb_init and cifs_reconnect_tcon again, ad infinitum... Break the infinite recursion by having those functions use a new smb_init variant that doesn't attempt to perform a reconnect. Reported-and-Tested-by: NMichal Suchanek <hramrach@centrum.cz> Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 30 9月, 2010 1 次提交
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由 Shirish Pargaonkar 提交于
Attribue Value (AV) pairs or Target Info (TI) pairs are part of ntlmv2 authentication. Structure ntlmv2_resp had only definition for two av pairs. So removed it, and now allocation of av pairs is dynamic. For servers like Windows 7/2008, av pairs sent by server in challege packet (type 2 in the ntlmssp exchange/negotiation) can vary. Server sends them during ntlmssp negotiation. So when ntlmssp is used as an authentication mechanism, type 2 challenge packet from server has this information. Pluck it and use the entire blob for authenticaiton purpose. If user has not specified, extract (netbios) domain name from the av pairs which is used to calculate ntlmv2 hash. Servers like Windows 7 are particular about the AV pair blob. Servers like Windows 2003, are not very strict about the contents of av pair blob used during ntlmv2 authentication. So when security mechanism such as ntlmv2 is used (not ntlmv2 in ntlmssp), there is no negotiation and so genereate a minimal blob that gets used in ntlmv2 authentication as well as gets sent. Fields tilen and tilbob are session specific. AV pair values are defined. To calculate ntlmv2 response we need ti/av pair blob. For sec mech like ntlmssp, the blob is plucked from type 2 response from the server. From this blob, netbios name of the domain is retrieved, if user has not already provided, to be included in the Target String as part of ntlmv2 hash calculations. For sec mech like ntlmv2, create a minimal, two av pair blob. The allocated blob is freed in case of error. In case there is no error, this blob is used in calculating ntlmv2 response (in CalcNTLMv2_response) and is also copied on the response to the server, and then freed. The type 3 ntlmssp response is prepared on a buffer, 5 * sizeof of struct _AUTHENTICATE_MESSAGE, an empirical value large enough to hold _AUTHENTICATE_MESSAGE plus a blob with max possible 10 values as part of ntlmv2 response and lmv2 keys and domain, user, workstation names etc. Also, kerberos gets selected as a default mechanism if server supports it, over the other security mechanisms. Signed-off-by: NShirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 09 9月, 2010 1 次提交
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由 Steve French 提交于
This reverts commit 9fbc5908. The change to kernel crypto and fixes to ntlvm2 and ntlmssp series, introduced a regression. Deferring this patch series to 2.6.37 after Shirish fixes it. Signed-off-by: NSteve French <sfrench@us.ibm.com> Acked-by: NJeff Layton <jlayton@redhat.com> CC: Shirish Pargaonkar <shirishp@us.ibm.com>
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- 21 8月, 2010 1 次提交
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由 Steve French 提交于
Make ntlmv2 as an authentication mechanism within ntlmssp instead of ntlmv1. Parse type 2 response in ntlmssp negotiation to pluck AV pairs and use them to calculate ntlmv2 response token. Also, assign domain name from the sever response in type 2 packet of ntlmssp and use that (netbios) domain name in calculation of response. Enable cifs/smb signing using rc4 and md5. Changed name of the structure mac_key to session_key to reflect the type of key it holds. Use kernel crypto_shash_* APIs instead of the equivalent cifs functions. Signed-off-by: NShirish Pargaonkar <shirishpargaonkar@gmail.com> Acked-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 06 5月, 2010 2 次提交
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由 Jeff Layton 提交于
...rather than the secType. This allows us to get rid of the MSKerberos securityEnum. The client just makes a decision at upcall time. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
So that we can reasonably set up the secType based on both the NegotiateProtocol response and the parsed mount options. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 27 4月, 2010 2 次提交
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由 Jeff Layton 提交于
Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
...since that more accurately describes what that variable holds. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 21 4月, 2010 2 次提交
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由 Steve French 提交于
Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Joe Perches 提交于
Neaten cERROR and cFYI macros, reduce text space ~2.5K Convert '__FILE__ ": " fmt' to '"%s: " fmt', __FILE__' to save text space Surround macros with do {} while Add parentheses to macros Make statement expression macro from macro with assign Remove now unnecessary parentheses from cFYI and cERROR uses defconfig with CIFS support old $ size fs/cifs/built-in.o text data bss dec hex filename 156012 1760 148 157920 268e0 fs/cifs/built-in.o defconfig with CIFS support old $ size fs/cifs/built-in.o text data bss dec hex filename 153508 1760 148 155416 25f18 fs/cifs/built-in.o allyesconfig old: $ size fs/cifs/built-in.o text data bss dec hex filename 309138 3864 74824 387826 5eaf2 fs/cifs/built-in.o allyesconfig new $ size fs/cifs/built-in.o text data bss dec hex filename 305655 3864 74824 384343 5dd57 fs/cifs/built-in.o Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 07 4月, 2010 1 次提交
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由 Pavel Shilovsky 提交于
If we have preventing lock, cifs should overwrite file_lock structure with info about preventing lock. If we haven't preventing lock, cifs should leave it unchanged except for the lock type (change it to F_UNLCK). Signed-off-by: NPavel Shilovsky <piastryyy@gmail.com> Reviewed-by: NJeff Layton <jlayton@samba.org> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 04 4月, 2010 2 次提交
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由 Suresh Jayaraman 提交于
While chasing a bug report involving a OS/2 server, I noticed the server sets pSMBr->CountHigh to a incorrect value even in case of normal writes. This results in 'nbytes' being computed wrongly and triggers a kernel BUG at mm/filemap.c. void iov_iter_advance(struct iov_iter *i, size_t bytes) { BUG_ON(i->count < bytes); <--- BUG here Why the server is setting 'CountHigh' is not clear but only does so after writing 64k bytes. Though this looks like the server bug, the client side crash may not be acceptable. The workaround is to mask off high 16 bits if the number of bytes written as returned by the server is greater than the bytes requested by the client as suggested by Jeff Layton. CC: Stable <stable@kernel.org> Reviewed-by: NJeff Layton <jlayton@samba.org> Signed-off-by: NSuresh Jayaraman <sjayaraman@suse.de> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Steve French 提交于
By doing this we always overwrite nbytes value that is being passed on to CIFSSMBWrite() and need not rely on the callers to initialize. CIFSSMBWrite2 is doing this already. CC: Stable <stable@kernel.org> Reviewed-by: NShirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: NJeff Layton <jlayton@samba.org> Signed-off-by: NSuresh Jayaraman <sjayaraman@suse.de> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 15 3月, 2010 1 次提交
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由 Dan Carpenter 提交于
I fixed the indent level. Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 06 3月, 2010 2 次提交
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由 Jeff Layton 提交于
...to allow us to get unix attrs via filehandle. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
...to get inode attributes via filehandle instead of by path. In some places, we need to revalidate an inode on an open filehandle, but we can't necessarily guarantee that the dentry associated with it will still be valid. When we have an open filehandle already, it makes more sense to do a filehandle based operation anyway. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 25 2月, 2010 2 次提交
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由 Steve French 提交于
convert it to a real mutex. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Steve French 提交于
Jeff correctly noted that using unsigned ea length is more intuitive. CC: Jeff Lyaton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 24 2月, 2010 6 次提交
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由 Steve French 提交于
CC: Jeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
Add an "ea_name" parameter to CIFSSMBQAllEAs. When it's set make it behave like CIFSSMBQueryEA does now. The current callers of CIFSSMBQueryEA are converted to use CIFSSMBQAllEAs, and the old CIFSSMBQueryEA function is removed. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
Make sure the lengths in a QUERY_ALL_EAS reply don't make the parser walk off the end of the SMB. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
It's 4000 now, but there's no reason to limit it to that. We should be able to handle a response up to CIFSMaxBufSize. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
...for clarity and so we can reuse the name for the real name_len. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
Add a label that we can goto on error, and reduce some of the if/then/else indentation in this function. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 09 2月, 2010 1 次提交
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由 Daniel Mack 提交于
In particular, several occurances of funny versions of 'success', 'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address', 'beginning', 'desirable', 'separate' and 'necessary' are fixed. Signed-off-by: NDaniel Mack <daniel@caiaq.de> Cc: Joe Perches <joe@perches.com> Cc: Junio C Hamano <gitster@pobox.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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