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2012-10-06rapidio/tsi721: add inbound memory mapping callbacksAlexandre Bounine2-4/+99
Add Tsi721 routines to support RapidIO subsystem's inbound memory mapping interface (RapidIO to system's local memory). Signed-off-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Cc: Li Yang <[email protected]> Cc: Kumar Gala <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06rapidio: add inbound memory mapping interfaceAlexandre Bounine3-0/+54
Add common inbound memory mapping/unmapping interface. This allows to make local memory space accessible from the RapidIO side using hardware mapping capabilities of RapidIO bridging devices. The new interface is intended to enable data transfers between RapidIO devices in combination with DMA engine support. This patch is based on patch submitted by Li Yang <[email protected]> (https://lists.ozlabs.org/pipermail/linuxppc-dev/2009-April/071210.html) Signed-off-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Cc: Li Yang <[email protected]> Cc: Kumar Gala <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06drivers/rapidio/devices/tsi721.c: fix error return codePeter Senna Tschudin1-1/+2
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Peter Senna Tschudin <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06rapidio: fix kerneldoc warnings after DMA support was addedAlexandre Bounine1-1/+2
Signed-off-by: Alexandre Bounine <[email protected]> Reported-by: Robert P. J. Day <[email protected]> Cc: Robert P. J. Day <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06rapidio/tsi721: modify mport name assignmentAlexandre Bounine2-2/+4
Modify RapidIO mport device name assignment to include device name of PCIe side of Tsi721 bridge. The new name format is intended to provide definitive reference between RapidIO and PCIe sides of the bridge in systems with multiple Tsi721 bridges. Signed-off-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06rapidio/rionet: fix multicast packet transmit logicAlexandre Bounine1-3/+17
Fix multicast packet transmit logic to account for repetitive transmission of single skb: - correct check for available buffers (this bug may produce NULL pointer crash dump in case of heavy traffic); - update skb user count (incorrect user counter causes a warning dump from net_tx_action routine during multicast transfers in systems with three or more rionet participants). Signed-off-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Cc: David S. Miller <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06kdump: remove unneeded includeWei Yongjun1-1/+0
The inclusion of <generated/utsrelease.h> is unnecessary. Signed-off-by: Wei Yongjun <[email protected]> Reviewed-by: Simon Horman <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fs/proc/root.c: use NULL instead of 0 for pointerSachin Kamat1-1/+1
This cleanup also fixes the following sparse warning: fs/proc/root.c:64:45: warning: Using plain integer as NULL pointer Signed-off-by: Sachin Kamat <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06proc_sysctl.c: use BUG_ON instead of BUGPrasad Joshi1-2/+1
The use of if (!head) BUG(); can be replaced with the single line BUG_ON(!head). Signed-off-by: Prasad Joshi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06proc: use kzalloc instead of kmalloc and memsetyan1-7/+6
Part of the memory will be written twice after this change, but that should be negligible. [[email protected]: fix __proc_create() coding-style issues, remove unneeded zero-initialisations] Signed-off-by: yan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06proc: no need to initialize proc_inode->fd in proc_get_inode()yan1-1/+0
proc_get_inode() obtains the inode via a call to iget_locked(). iget_locked() calls alloc_inode() which will call proc_alloc_inode() which clears proc_inode.fd, so there is no need to clear this field in proc_get_inode(). If iget_locked() instead found the inode via find_inode_fast(), that inode will not have I_NEW set so this change has no effect. Signed-off-by: yan <[email protected]> Cc: Al Viro <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06proc: return -ENOMEM when inode allocation failedyan1-1/+1
If proc_get_inode() returns NULL then presumably it encountered memory exhaustion. proc_lookup_de() should return -ENOMEM in this case, not -EINVAL. Signed-off-by: yan <[email protected]> Cc: Ryan Mallon <[email protected]> Cc: Cong Wang <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06coredump: extend core dump note section to contain file names of mapped filesDenys Vlasenko3-4/+108
This note has the following format: long count -- how many files are mapped long page_size -- units for file_ofs array of [COUNT] elements of long start long end long file_ofs followed by COUNT filenames in ASCII: "FILE1" NUL "FILE2" NUL... Signed-off-by: Denys Vlasenko <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Amerigo Wang <[email protected]> Cc: "Jonathan M. Foote" <[email protected]> Cc: Roland McGrath <[email protected]> Cc: Pedro Alves <[email protected]> Cc: Fengguang Wu <[email protected]> Cc: Stephen Rothwell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06coredump: add a new elf note with siginfo of the signalDenys Vlasenko3-2/+36
Existing PRSTATUS note contains only si_signo, si_code, si_errno fields from the siginfo of the signal which caused core to be dumped. There are tools which try to analyze crashes for possible security implications, and they want to use, among other data, si_addr field from the SIGSEGV. This patch adds a new elf note, NT_SIGINFO, which contains the complete siginfo_t of the signal which killed the process. Signed-off-by: Denys Vlasenko <[email protected]> Reviewed-by: Oleg Nesterov <[email protected]> Cc: Amerigo Wang <[email protected]> Cc: "Jonathan M. Foote" <[email protected]> Cc: Roland McGrath <[email protected]> Cc: Pedro Alves <[email protected]> Cc: Fengguang Wu <[email protected]> Cc: Stephen Rothwell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06compat: move compat_siginfo_t definition to asm/compat.hDenys Vlasenko19-476/+513
This is a preparatory patch for the introduction of NT_SIGINFO elf note. Make the location of compat_siginfo_t uniform across eight architectures which have it. Now it can be pulled in by including asm/compat.h or linux/compat.h. Most of the copies are verbatim. compat_uid[32]_t had to be replaced by __compat_uid[32]_t. compat_uptr_t had to be moved up before compat_siginfo_t in asm/compat.h on a several architectures (tile already had it moved up). compat_sigval_t had to be relocated from linux/compat.h to asm/compat.h. Signed-off-by: Denys Vlasenko <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Amerigo Wang <[email protected]> Cc: "Jonathan M. Foote" <[email protected]> Cc: Roland McGrath <[email protected]> Cc: Pedro Alves <[email protected]> Cc: Fengguang Wu <[email protected]> Cc: Stephen Rothwell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06coredump: pass siginfo_t* to do_coredump() and below, not merely signrDenys Vlasenko8-21/+21
This is a preparatory patch for the introduction of NT_SIGINFO elf note. With this patch we pass "siginfo_t *siginfo" instead of "int signr" to do_coredump() and put it into coredump_params. It will be used by the next patch. Most changes are simple s/signr/siginfo->si_signo/. Signed-off-by: Denys Vlasenko <[email protected]> Reviewed-by: Oleg Nesterov <[email protected]> Cc: Amerigo Wang <[email protected]> Cc: "Jonathan M. Foote" <[email protected]> Cc: Roland McGrath <[email protected]> Cc: Pedro Alves <[email protected]> Cc: Fengguang Wu <[email protected]> Cc: Stephen Rothwell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06coredump: use SUID_DUMPABLE_ENABLED rather than hardcoded 1Oleg Nesterov2-2/+2
Cosmetic. Change setup_new_exec() and task_dumpable() to use SUID_DUMPABLE_ENABLED for /bin/grep. [[email protected]: checkpatch fixes] Signed-off-by: Oleg Nesterov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06coredump: add support for %d=__get_dumpable() in core nameOleg Nesterov2-3/+9
Some coredump handlers want to create a core file in a way compatible with standard behavior. Standard behavior with fs.suid_dumpable = 2 is to create core file with uid=gid=0. However, there was no way for coredump handler to know that the process being dumped was suid'ed. This patch adds the new %d specifier for format_corename() which simply reports __get_dumpable(mm->flags), this is compatible with /proc/sys/fs/suid_dumpable we already have. Addresses https://bugzilla.redhat.com/show_bug.cgi?id=787135 Developed during a discussion with Denys Vlasenko. Signed-off-by: Oleg Nesterov <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: Alex Kelly <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Cong Wang <[email protected]> Cc: Jiri Moskovcak <[email protected]> Acked-by: Neil Horman <[email protected]> Cc: Alan Cox <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06coredump: update coredump-related headersAlex Kelly7-6/+15
Create a new header file, fs/coredump.h, which contains functions only used by the new coredump.c. It also moves do_coredump to the include/linux/coredump.h header file, for consistency. Signed-off-by: Alex Kelly <[email protected]> Reviewed-by: Josh Triplett <[email protected]> Acked-by: Serge Hallyn <[email protected]> Acked-by: Kees Cook <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06coredump: make core dump functionality optionalAlex Kelly6-27/+53
Adds an expert Kconfig option, CONFIG_COREDUMP, which allows disabling of core dump. This saves approximately 2.6k in the compiled kernel, and complements CONFIG_ELF_CORE, which now depends on it. CONFIG_COREDUMP also disables coredump-related sysctls, except for suid_dumpable and related functions, which are necessary for ptrace. [[email protected]: fix binfmt_aout.c build] Signed-off-by: Alex Kelly <[email protected]> Reviewed-by: Josh Triplett <[email protected]> Acked-by: Serge Hallyn <[email protected]> Acked-by: Kees Cook <[email protected]> Cc: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06device_cgroup: rename whitelist to exception listAristeu Rozanski1-99/+99
This patch replaces the "whitelist" usage in the code and comments and replace them by exception list related information. Signed-off-by: Aristeu Rozanski <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Li Zefan <[email protected]> Cc: James Morris <[email protected]> Cc: Pavel Emelyanov <[email protected]> Acked-by: Serge E. Hallyn <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06device_cgroup: convert device_cgroup internally to policy + exceptionsAristeu Rozanski1-98/+134
The original model of device_cgroup is having a whitelist where all the allowed devices are listed. The problem with this approach is that is impossible to have the case of allowing everything but few devices. The reason for that lies in the way the whitelist is handled internally: since there's only a whitelist, the "all devices" entry would have to be removed and replaced by the entire list of possible devices but the ones that are being denied. Since dev_t is 32 bits long, representing the allowed devices as a bitfield is not memory efficient. This patch replaces the "whitelist" by a "exceptions" list and the default policy is kept as "deny_all" variable in dev_cgroup structure. The current interface determines that whenever "a" is written to devices.allow or devices.deny, the entry masking all devices will be added or removed, respectively. This behavior is kept and it's what will determine the default policy: # cat devices.list a *:* rwm # echo a >devices.deny # cat devices.list # echo a >devices.allow # cat devices.list a *:* rwm The interface is also preserved. For example, if one wants to block only access to /dev/null: # ls -l /dev/null crw-rw-rw- 1 root root 1, 3 Jul 24 16:17 /dev/null # echo a >devices.allow # echo "c 1:3 rwm" >devices.deny # cat /dev/null cat: /dev/null: Operation not permitted # echo >/dev/null bash: /dev/null: Operation not permitted mknod /tmp/null c 1 3 mknod: `/tmp/null': Operation not permitted # echo "c 1:3 r" >devices.allow # cat /dev/null # echo >/dev/null bash: /dev/null: Operation not permitted mknod /tmp/null c 1 3 mknod: `/tmp/null': Operation not permitted # echo "c 1:3 rw" >devices.allow # echo >/dev/null # cat /dev/null # mknod /tmp/null c 1 3 mknod: `/tmp/null': Operation not permitted # echo "c 1:3 rwm" >devices.allow # echo >/dev/null # cat /dev/null # mknod /tmp/null c 1 3 # Note that I didn't rename the functions/variables in this patch, but in the next one to make reviewing easier. Signed-off-by: Aristeu Rozanski <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Li Zefan <[email protected]> Cc: James Morris <[email protected]> Cc: Pavel Emelyanov <[email protected]> Acked-by: Serge E. Hallyn <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06device_cgroup: introduce dev_whitelist_clean()Aristeu Rozanski1-5/+17
This function cleans all the items in a whitelist and will be used by the next patches. Signed-off-by: Aristeu Rozanski <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Li Zefan <[email protected]> Cc: James Morris <[email protected]> Cc: Pavel Emelyanov <[email protected]> Acked-by: Serge E. Hallyn <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06device_cgroup: add "deny_all" in dev_cgroup structureAristeu Rozanski1-0/+5
deny_all will determine if the default policy is to deny all device access unless for the ones in the exception list. This variable will be used in the next patches to convert device_cgroup internally into a default policy + rules. Signed-off-by: Aristeu Rozanski <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Li Zefan <[email protected]> Cc: James Morris <[email protected]> Cc: Pavel Emelyanov <[email protected]> Acked-by: Serge E. Hallyn <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06kernel-doc: don't mangle whitespace in Example sectionDaniel Santos1-2/+7
A section with the name "Example" (case-insensitive) has a special meaning to kernel-doc. These sections are output using mono-type fonts. However, leading whitespace is stripped, thus robbing a lot of meaning from this, as indented code examples will be mangled. This patch preserves the leading whitespace for "Example" sections. More accurately, it preserves it for all sections, but removes it later if the section isn't an "Example" section. Signed-off-by: Daniel Santos <[email protected]> Cc: Randy Dunlap <[email protected]> Cc: Michal Marek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06kernel-doc: bugfix - empty line in Example sectionDaniel Santos1-1/+10
If you have a section named "Example" that contains an empty line, attempting to generate htmldocs give you the error: /path/Documentation/DocBook/kernel-api.xml:3455: parser error : Opening and ending tag mismatch: programlisting line 3449 and para </para><para> ^ /path/Documentation/DocBook/kernel-api.xml:3473: parser error : Opening and ending tag mismatch: para line 3467 and programlisting </programlisting></informalexample> ^ /path/Documentation/DocBook/kernel-api.xml:3678: parser error : Opening and ending tag mismatch: programlisting line 3672 and para </para><para> ^ /path/Documentation/DocBook/kernel-api.xml:3701: parser error : Opening and ending tag mismatch: para line 3690 and programlisting </programlisting></informalexample> ^ unable to parse /path/Documentation/DocBook/kernel-api.xml Essentially, the script attempts to close a <programlisting> with a closing tag for a <para> block. This patch corrects the problem by simply not outputting anything extra when we're dumping pre-formatted text, since the empty line will be rendered correctly anyway. Signed-off-by: Daniel Santos <[email protected]> Cc: Randy Dunlap <[email protected]> Cc: Michal Marek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06kernel-doc: bugfix - multi-line macrosDaniel Santos1-0/+3
Prior to this patch the following code breaks: /** * multiline_example - this breaks kernel-doc */ #define multiline_example( \ myparam) Producing this error: Error(somefile.h:983): cannot understand prototype: 'multiline_example( \ ' This patch fixes the issue by appending all lines ending in a blackslash (optionally followed by whitespace), removing the backslash and any whitespace after it prior to appending (just like the C pre-processor would). This fixes a break in kerel-doc introduced by the additions to rbtree.h. Signed-off-by: Daniel Santos <[email protected]> Cc: Randy Dunlap <[email protected]> Cc: Michal Marek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fat: simplify writeback_inode()Namjae Jeon1-9/+5
[[email protected]: checkpatch fixes] Signed-off-by: Namjae Jeon <[email protected]> Signed-off-by: Amit Sahrawat <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fat: no need to reset EOF in ent_put for FAT32Namjae Jeon1-3/+0
#define FAT_ENT_EOF(EOF_FAT32) there is no need to reset value of 'new' for FAT32 as the values is already correct Signed-off-by: Namjae Jeon <[email protected]> Signed-off-by: Amit Sahrawat <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fs/fat: fix checkpatch issues in fatent.cCruz Julian Bishop1-4/+6
1: Stop any lines going over 80 characters 2: Remove a blank line before EXPORT_SYMBOL_GPL Signed-off-by: Cruz Julian Bishop <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fs/fat: fix all other checkpatch issues in dir.cCruz Julian Bishop1-9/+14
1: Import linux/uaccess.h instead of asm.uaccess.h 2: Stop any lines going over 80 characters 3: Stopped setting any variables in if statements 4: Stopped splitting quoted strings 5: Removed unneeded parentheses Signed-off-by: Cruz Julian Bishop <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fs/fat: fix some small checkpatch issues in dir.cCruz Julian Bishop1-7/+0
Simply remove the spacing between function definitions and EXPORT_SYMBOL_GPL calls, which were previously generating warnings. Signed-off-by: Cruz Julian Bishop <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fs/fat: fix two checkpatch issues in cache.cCruz Julian Bishop1-4/+6
This does the following: 1: Splits the arguments of a function call to stop it from exceeding 80 characters 2: Re-indents the arguments of another function call to prevent the splitting of a quoted string. Signed-off-by: Cruz Julian Bishop <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fs/fat: chang indentation of some comments in fat.hCruz Julian Bishop1-36/+36
The comments were not lined up properly, so I just re-indented them. This also fixes a stupid checkpatch issue unknowingly Signed-off-by: Cruz Julian Bishop <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fs/fat: fix some checkpatch issues in fat.hCruz Julian Bishop1-3/+3
Mainly fix spacing issues such as "foo * bar" and "foo= bar" Signed-off-by: Cruz Julian Bishop <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fs/fat: fix a checkpatch issue in namei_msdos.cCruz Julian Bishop1-1/+1
Add a space before an equals sign/operator in line 410. Signed-off-by: Cruz Julian Bishop <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fat (exportfs): fix dentry reconnectionSteven J. Magnani6-137/+141
Maintain an index of directory inodes by starting cluster, so that fat_get_parent() can return the proper cached inode rather than inventing one that cannot be traced back to the filesystem root. Add a new msdos/vfat binary mount option "nfs" so that FAT filesystems that are _not_ exported via NFS are not saddled with maintenance of an index they will never use. Finally, simplify NFS file handle generation and lookups. An ext2-congruent implementation is adequate for FAT needs. Signed-off-by: Steven J. Magnani <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fat (exportfs): move NFS support codeSteven J. Magnani4-131/+174
Under memory pressure, the system may evict dentries from cache. When the FAT driver receives a NFS request involving an evicted dentry, it is unable to reconnect it to the filesystem root. This causes the request to fail, often with ENOENT. This is partially due to ineffectiveness of the current FAT NFS implementation, and partially due to an unimplemented fh_to_parent method. The latter can cause file accesses to fail on shares exported with subtree_check. This patch set provides the FAT driver with the ability to reconnect dentries. NFS file handle generation and lookups are simplified and made congruent with ext2. Testing has involved a memory-starved virtual machine running 3.5-rc5 that exports a ~2 GB vfat filesystem containing a kernel tree (~770 MB, ~40000 files, 9 levels). Both 'cp -r' and 'ls -lR' operations were performed from a client, some overlapping, some consecutive. Exports with 'subtree_check' and 'no_subtree_check' have been tested. Note that while this patch set improves FAT's NFS support, it does not eliminate ESTALE errors completely. The following should be considered for NFS clients who are sensitive to ESTALE: * Mounting with lookupcache=none Unfortunately this can degrade performance severely, particularly for deep filesystems. * Incorporating VFS patches to retry ESTALE failures on the client-side, such as https://lkml.org/lkml/2012/6/29/381 * Handling ESTALE errors in client application code This patch: Move NFS-related code into its own C file. No functional changes. Signed-off-by: Steven J. Magnani <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06fat: use accessor function for msdos_dir_entry 'start'Namjae Jeon1-4/+2
Use accessor function for msdos_dir_entry 'start' Signed-off-by: Namjae Jeon <[email protected]> Signed-off-by: Amit Sahrawat <[email protected]> Acked-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06hpfs: convert to use leXX_add_cpu()Wei Yongjun2-17/+17
Convert cpu_to_leXX(leXX_to_cpu(E1) + E2) to use leXX_add_cpu(). dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun <[email protected]> Cc: Mikulas Patocka <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06drivers/rtc/rtc-s35390a.c: add wakealarm support for rtc-s35390A rtc chipMichael Langer1-0/+116
Add basic get/set alarm support for the Seiko Instruments S-35390A. The chip is used on the QNAP TS-219P+ NAS device. Signed-off-by: Michael Langer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06drivers/rtc/rtc-m41t80.c: remove disabled alarm functionalityPaul Bolle1-153/+4
Commit c3b79770e51a ("rtc: m41t80: Workaround broken alarm functionality") disabled m41t80's alarm functions. But since those functions were not touched, building this driver triggers these GCC warnings: drivers/rtc/rtc-m41t80.c:216:12: warning: 'm41t80_rtc_alarm_irq_enable' defined but not used [-Wunused-function] drivers/rtc/rtc-m41t80.c:238:12: warning: 'm41t80_rtc_set_alarm' defined but not used [-Wunused-function] drivers/rtc/rtc-m41t80.c:308:12: warning: 'm41t80_rtc_read_alarm' defined but not used [-Wunused-function] Remove these functions (and the commented out references to them) to silence these warnings. Anyone wanting to fix the alarm irq functionality can easily find the removed code in the git log of this file or through some web searches. Signed-off-by: Paul Bolle <[email protected]> Cc: John Stultz <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06drivers/rtc/rtc-tps65910.c: use platform_get_irq() to get RTC irq detailsVenu Byravarasu1-4/+1
As RTC driver needs only irq number from platform data, using platform_get_irq(), instead of generic dev_get_platdata(). Signed-off-by: Venu Byravarasu <[email protected]> Acked-by: Stephen Warren <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06rtc: kconfig: fix up dependency for ab8500Ulf Hansson1-0/+1
Signed-off-by: Ulf Hansson <[email protected]> Acked-by: Linus Walleij <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06drivers/rtc/rtc-em3027.c: convert struct i2c_msg initialization to C99 formatShubhrajyoti D1-3/+14
Convert the struct i2c_msg initialization to C99 format. This makes maintaining and editing the code simpler. Also helps once other fields like transferred are added in future. Signed-off-by: Shubhrajyoti D <[email protected]> Reviewed-by: Felipe Balbi <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06drivers/rtc/rtc-isl1208.c: convert struct i2c_msg initialization to C99 formatShubhrajyoti D1-4/+16
Convert the struct i2c_msg initialization to C99 format. This makes maintaining and editing the code simpler. Also helps once other fields like transferred are added in future. Signed-off-by: Shubhrajyoti D <[email protected]> Reviewed-by: Felipe Balbi <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06drivers/rtc/rtc-pcf8563.c: convert struct i2c_msg initialization to C99 formatShubhrajyoti D1-2/+11
Convert the struct i2c_msg initialization to C99 format. This makes maintaining and editing the code simpler. Also helps once other fields like transferred are added in future. Signed-off-by: Shubhrajyoti D <[email protected]> Reviewed-by: Felipe Balbi <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06drivers/rtc/rtc-rs5c372.c: convert struct i2c_msg initialization to C99 formatShubhrajyoti D1-1/+6
Convert the struct i2c_msg initialization to C99 format. This makes maintaining and editing the code simpler. Also helps once other fields like transferred are added in future. while at it also fix a checkpatch warn WARNING: sizeof rs5c->buf should be sizeof(rs5c->buf) Signed-off-by: Shubhrajyoti D <[email protected]> Reviewed-by: Felipe Balbi <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06drivers/rtc/rtc-s35390a.c: convert struct i2c_msg initialization to C99 formatShubhrajyoti D1-2/+11
Convert the struct i2c_msg initialization to C99 format. This makes maintaining and editing the code simpler. Also helps once other fields like transferred are added in future. Signed-off-by: Shubhrajyoti D <[email protected]> Reviewed-by: Felipe Balbi <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-06drivers/rtc/rtc-x1205.c: convert struct i2c_msg initialization to C99 formatShubhrajyoti D1-14/+78
Convert the struct i2c_msg initialization to C99 format. This makes maintaining and editing the code simpler. Also helps once other fields like transferred are added in future. Signed-off-by: Shubhrajyoti D <[email protected]> Reviewed-by: Felipe Balbi <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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