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2020-12-14libceph: make con->state an intIlya Dryomov
unsigned long is a leftover from when con->state used to be a set of bits managed with set_bit(), clear_bit(), etc. Save a bit of memory. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: don't export ceph_messenger_{init_fini}() to modulesIlya Dryomov
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: make sure our addr->port is zero and addr->nonce is non-zeroIlya Dryomov
Our messenger instance addr->port is normally zero -- anything else is nonsensical because as a client we connect to multiple servers and don't listen on any port. However, a user can supply an arbitrary addr:port via ip option and the port is currently preserved. Zero it. Conversely, make sure our addr->nonce is non-zero. A zero nonce is special: in combination with a zero port, it is used to blocklist the entire ip. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: factor out ceph_con_get_out_msg()Ilya Dryomov
Move the logic of grabbing the next message from the queue into its own function. Like ceph_con_in_msg_alloc(), this is protocol independent. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: change ceph_con_in_msg_alloc() to take hdrIlya Dryomov
ceph_con_in_msg_alloc() is protocol independent, but con->in_hdr (and struct ceph_msg_header in general) is msgr1 specific. While the struct is deeply ingrained inside and outside the messenger, con->in_hdr field can be separated. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: change ceph_msg_data_cursor_init() to take cursorIlya Dryomov
Make it possible to have local cursors and embed them outside struct ceph_msg. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: handle discarding acked and requeued messages separatelyIlya Dryomov
Make it easier to follow and remove dependency on msgr1 specific CEPH_MSGR_TAG_SEQ. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: drop msg->ack_stamp fieldIlya Dryomov
It is set in process_ack() but never used. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: remove redundant session reset log messageIlya Dryomov
Stick with pr_info message because session reset isn't an error most of the time. When it is (i.e. if the server denies the reconnect attempt), we get a bunch of other pr_err messages. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: clear con->peer_global_seq on RESETSESSIONIlya Dryomov
con->peer_global_seq is part of session state. Clear it when the server tells us to reset, not just in ceph_con_close(). Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: rename reset_connection() to ceph_con_reset_session()Ilya Dryomov
With just session reset bits left, rename appropriately. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: split protocol reset bits out of reset_connection()Ilya Dryomov
Move protocol reset bits into ceph_con_reset_protocol(), leaving just session reset bits. Note that con->out_skip is now reset on faults. This fixes a crash in the case of a stateful session getting a fault while in the middle of revoking a message. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: don't call reset_connection() on version/feature mismatchesIlya Dryomov
A fault due to a version mismatch or a feature set mismatch used to be treated differently from other faults: the connection would get closed without trying to reconnect and there was a ->bad_proto() connection op for notifying about that. This changed a long time ago, see commits 6384bb8b8e88 ("libceph: kill bad_proto ceph connection op") and 0fa6ebc600bc ("libceph: fix protocol feature mismatch failure path"). Nowadays these aren't any different from other faults (i.e. we try to reconnect even though the mismatch won't resolve until the server is replaced). reset_connection() calls there are rather confusing because reset_connection() resets a session together an individual instance of the protocol. This is cleaned up in the next patch. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: lower exponential backoff delayIlya Dryomov
The current setting allows the backoff to climb up to 5 minutes. This is too high -- it becomes hard to tell whether the client is stuck on something or just in backoff. In userspace, ms_max_backoff is defaulted to 15 seconds. Let's do the same. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: include middle_len in process_message() doutIlya Dryomov
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: implement updated ceph_mds_request_head structureJeff Layton
When we added the btime feature in mainline ceph, we had to extend struct ceph_mds_request_args so that it could be set. Implement the same in the kernel client. Rename ceph_mds_request_head with a _old extension, and a union ceph_mds_request_args_ext to allow for the extended size of the new header format. Add the appropriate code to handle both formats in struct create_request_message and key the behavior on whether the peer supports CEPH_FEATURE_FS_BTIME. The gid_list field in the payload is now populated from the saved credential. For now, we don't add any support for setting the btime via setattr, but this does enable us to add that in the future. [ idryomov: break unnecessarily long lines ] Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: clean up argument lists to __prepare_send_request and __send_requestJeff Layton
We can always get the mdsc from the session, so there's no need to pass it in as a separate argument. Pass the session to __prepare_send_request as well, to prepare for later patches that will need to access it. Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: take a cred reference instead of tracking individual uid/gidJeff Layton
Replace req->r_uid/r_gid with an r_cred pointer and take a reference to that at the point where we previously would sample the two. Use that to populate the uid and gid in the header and release the reference when the request is freed. This should enable us to later add support for sending supplementary group lists in MDS requests. [ idryomov: break unnecessarily long lines ] Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: don't reach into request header for readdir infoJeff Layton
We already have a pointer to the argument struct in req->r_args. Use that instead of groveling around in the ceph_mds_request_head. Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: set osdmap epoch for setxattrXiubo Li
When setting the file/dir layout, it may need data pool info. So in mds server, it needs to check the osdmap. At present, if mds doesn't find the data pool specified, it will try to get the latest osdmap. Now if pass the osd epoch for setxattr, the mds server can only check this epoch of osdmap. URL: https://tracker.ceph.com/issues/48504 Signed-off-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: remove redundant assignment to variable iColin Ian King
The variable i is being initialized with a value that is never read and it is being updated later with a new value in a for-loop. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: add ceph.caps vxattrLuis Henriques
Add a new vxattr that allows userspace to list the caps for a specific directory or file. [ jlayton: change format delimiter to '/' ] Signed-off-by: Luis Henriques <lhenriques@suse.de> Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: when filling trace, call ceph_get_inode outside of mutexesJeff Layton
Geng Jichao reported a rather complex deadlock involving several moving parts: 1) readahead is issued against an inode and some of its pages are locked while the read is in flight 2) the same inode is evicted from the cache, and this task gets stuck waiting for the page lock because of the above readahead 3) another task is processing a reply trace, and looks up the inode being evicted while holding the s_mutex. That ends up waiting for the eviction to complete 4) a write reply for an unrelated inode is then processed in the ceph_con_workfn job. It calls ceph_check_caps after putting wrbuffer caps, and that gets stuck waiting on the s_mutex held by 3. The reply to "1" is stuck behind the write reply in "4", so we deadlock at that point. This patch changes the trace processing to call ceph_get_inode outside of the s_mutex and snap_rwsem, which should break the cycle above. [ idryomov: break unnecessarily long lines ] URL: https://tracker.ceph.com/issues/47998 Reported-by: Geng Jichao <gengjichao@jd.com> Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Luis Henriques <lhenriques@suse.de> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14Revert "ceph: allow rename operation under different quota realms"Luis Henriques
This reverts commit dffdcd71458e699e839f0bf47c3d42d64210b939. When doing a rename across quota realms, there's a corner case that isn't handled correctly. Here's a testcase: mkdir files limit truncate files/file -s 10G setfattr limit -n ceph.quota.max_bytes -v 1000000 mv files limit/ The above will succeed because ftruncate(2) won't immediately notify the MDSs with the new file size, and thus the quota realms stats won't be updated. Since the possible fixes for this issue would have a huge performance impact, the solution for now is to simply revert to returning -EXDEV when doing a cross quota realms rename. URL: https://tracker.ceph.com/issues/48203 Signed-off-by: Luis Henriques <lhenriques@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: fix inode refcount leak when ceph_fill_inode on non-I_NEW inode failsJeff Layton
Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: downgrade warning from mdsmap decode to debugLuis Henriques
While the MDS cluster is unstable and changing state the client may get mdsmap updates that will trigger warnings: [144692.478400] ceph: mdsmap_decode got incorrect state(up:standby-replay) [144697.489552] ceph: mdsmap_decode got incorrect state(up:standby-replay) [144697.489580] ceph: mdsmap_decode got incorrect state(up:standby-replay) This patch downgrades these warnings to debug, as they may flood the logs if the cluster is unstable for a while. Signed-off-by: Luis Henriques <lhenriques@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: fix race in concurrent __ceph_remove_cap invocationsLuis Henriques
A NULL pointer dereference may occur in __ceph_remove_cap with some of the callbacks used in ceph_iterate_session_caps, namely trim_caps_cb and remove_session_caps_cb. Those callers hold the session->s_mutex, so they are prevented from concurrent execution, but ceph_evict_inode does not. Since the callers of this function hold the i_ceph_lock, the fix is simply a matter of returning immediately if caps->ci is NULL. Cc: stable@vger.kernel.org URL: https://tracker.ceph.com/issues/43272 Suggested-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Luis Henriques <lhenriques@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: pass down the flags to grab_cache_page_write_beginJeff Layton
write_begin operations are passed a flags parameter that we need to mirror here, so that we don't (e.g.) recurse back into filesystem code inappropriately. Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: add ceph.{cluster_fsid/client_id} vxattrsXiubo Li
These two vxattrs will only exist in local client side, with which we can easily know which mountpoint the file belongs to and also they can help locate the debugfs path quickly. URL: https://tracker.ceph.com/issues/48057 Signed-off-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: add status debugfs fileXiubo Li
This will help list some useful client side info, like the client entity address/name and blocklisted status, etc. URL: https://tracker.ceph.com/issues/48057 Signed-off-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14libceph: remove unused port macrosLiu, Changcheng
1. monitor's default port is defined by CEPH_MON_PORT 2. CEPH_PORT_START and CEPH_PORT_LAST are not needed. Signed-off-by: Changcheng Liu <changcheng.liu@aliyun.com> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: ensure we have Fs caps when fetching dir link countJeff Layton
The link count for a directory is defined as inode->i_subdirs + 2, (for "." and ".."). i_subdirs is only populated when Fs caps are held. Ensure we grab Fs caps when fetching the link count for a directory. [ idryomov: break unnecessarily long line ] URL: https://tracker.ceph.com/issues/48125 Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: send dentry lease metrics to MDS daemonXiubo Li
For the old ceph version, if it received this one metric message containing the dentry lease metric info, it will just ignore it. URL: https://tracker.ceph.com/issues/43423 Signed-off-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: acquire Fs caps when getting dir statsJeff Layton
We only update the inode's dirstats when we have Fs caps from the MDS. Declare a new VXATTR_FLAG_DIRSTAT that we set on all dirstats, and have the vxattr handling code acquire those caps when it's set. URL: https://tracker.ceph.com/issues/48104 Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Patrick Donnelly <pdonnell@redhat.com> Reviewed-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: fix up some warnings on W=1 buildsJeff Layton
Convert some decodes into unused variables into skips, and fix up some non-kerneldoc comment headers to not start with "/**". Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: queue MDS requests to REJECTED sessions when CLEANRECOVER is setJeff Layton
Ilya noticed that the first access to a blacklisted mount would often get back -EACCES, but then subsequent calls would be OK. The problem is in __do_request. If the session is marked as REJECTED, a hard error is returned instead of waiting for a new session to come into being. When the session is REJECTED and the mount was done with recover_session=clean, queue the request to the waiting_for_map queue, which will be awoken after tearing down the old session. We can only do this for sync requests though, so check for async ones first and just let the callers redrive a sync request. URL: https://tracker.ceph.com/issues/47385 Reported-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: remove timeout on allowing reconnect after blocklistingJeff Layton
30 minutes is a long time to wait, and this makes it difficult to test the feature by manually blocklisting clients. Remove the timeout infrastructure and just allow the client to reconnect at will. Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: add new RECOVER mount_state when recovering sessionJeff Layton
When recovering a session (a'la recover_session=clean), we want to do all of the operations that we do on a forced umount, but changing the mount state to SHUTDOWN is can cause queued MDS requests to fail when the session comes back. Most of those can idle until the session is recovered in this situation. Reserve SHUTDOWN state for forced umount, and make a new RECOVER state for the forced reconnect situation. Change several tests for equality with SHUTDOWN to test for that or RECOVER. Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: make fsc->mount_state an intJeff Layton
This field is an unsigned long currently, which is a bit of a waste on most arches since this just holds an enum. Make it (signed) int instead. Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14ceph: don't WARN when removing caps due to blocklistingJeff Layton
We expect to remove dirty caps when the client is blocklisted. Don't throw a warning in that case. [ idryomov: break unnecessarily long line ] Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-12-14dt-bindings: mali-bifrost: Add dynamic-power-coefficientLukasz Luba
Add a property dynamic-power-coefficient which allows to register Energy Model for the Mali Bifrost devices. Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://lore.kernel.org/r/20201209115143.15321-3-lukasz.luba@arm.com Signed-off-by: Rob Herring <robh@kernel.org>
2020-12-14dt-bindings: mali-midgard: Add dynamic-power-coefficientLukasz Luba
Add a property dynamic-power-coefficient which allows to register Energy Model for the Mali Midgard devices. Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://lore.kernel.org/r/20201209115143.15321-2-lukasz.luba@arm.com Signed-off-by: Rob Herring <robh@kernel.org>
2020-12-14Merge tag 'x86_build_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 build updates from Borislav Petkov: "Two x86 build fixes: - Fix the vmlinux size check on 64-bit along with adding useful clarifications on the topic (Arvind Sankar) - Remove -m16 workaround now that the GCC versions that need it are unsupported (Nick Desaulniers)" * tag 'x86_build_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/build: Remove -m16 workaround for unsupported versions of GCC x86/build: Fix vmlinux size check on 64-bit
2020-12-14Merge tag 'x86_cache_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cache resource control updates from Borislav Petkov: - add logic to correct MBM total and local values fixing errata SKX99 and BDF102 (Fenghua Yu) - cleanups * tag 'x86_cache_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/resctrl: Clean up unused function parameter in rmdir path x86/resctrl: Constify kernfs_ops x86/resctrl: Correct MBM total and local values Documentation/x86: Rename resctrl_ui.rst and add two errata to the file
2020-12-14Merge tag 'x86_cleanups_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cleanups from Borislav Petkov: "Another branch with a nicely negative diffstat, just the way I like 'em: - Remove all uses of TIF_IA32 and TIF_X32 and reclaim the two bits in the end (Gabriel Krisman Bertazi) - All kinds of minor cleanups all over the tree" * tag 'x86_cleanups_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) x86/ia32_signal: Propagate __user annotation properly x86/alternative: Update text_poke_bp() kernel-doc comment x86/PCI: Make a kernel-doc comment a normal one x86/asm: Drop unused RDPID macro x86/boot/compressed/64: Use TEST %reg,%reg instead of CMP $0,%reg x86/head64: Remove duplicate include x86/mm: Declare 'start' variable where it is used x86/head/64: Remove unused GET_CR2_INTO() macro x86/boot: Remove unused finalize_identity_maps() x86/uaccess: Document copy_from_user_nmi() x86/dumpstack: Make show_trace_log_lvl() static x86/mtrr: Fix a kernel-doc markup x86/setup: Remove unused MCA variables x86, libnvdimm/test: Remove COPY_MC_TEST x86: Reclaim TIF_IA32 and TIF_X32 x86/mm: Convert mmu context ia32_compat into a proper flags field x86/elf: Use e_machine to check for x32/ia32 in setup_additional_pages() elf: Expose ELF header on arch_setup_additional_pages() x86/elf: Use e_machine to select start_thread for x32 elf: Expose ELF header in compat_start_thread() ...
2020-12-14Merge tag 'x86_mm_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 mm update from Borislav Petkov: "A single improvement to check ident_pud_init()'s return value (Arvind Sankar)" * tag 'x86_mm_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm/ident_map: Check for errors from ident_pud_init()
2020-12-14Merge tag 'x86_misc_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 updates from Borislav Petkov: "The main part of this branch is the ongoing fight against windmills in an attempt to have userspace tools not poke at naked MSRs. This round deals with MSR_IA32_ENERGY_PERF_BIAS and removes direct poking into it by our in-tree tools in favor of the proper "energy_perf_bias" sysfs interface which we already have. In addition, the msr.ko write filtering's error message points to a new summary page which contains the info we collected from helpful reporters about which userspace tools write MSRs: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/about along with the current status of their conversion. The rest is the usual small fixes and improvements" * tag 'x86_misc_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/msr: Add a pointer to an URL which contains further details x86/pci: Fix the function type for check_reserved_t selftests/x86: Add missing .note.GNU-stack sections selftests/x86/fsgsbase: Fix GS == 1, 2, and 3 tests x86/msr: Downgrade unrecognized MSR message x86/msr: Do not allow writes to MSR_IA32_ENERGY_PERF_BIAS tools/power/x86_energy_perf_policy: Read energy_perf_bias from sysfs tools/power/turbostat: Read energy_perf_bias from sysfs tools/power/cpupower: Read energy_perf_bias from sysfs MAINTAINERS: Cleanup SGI-related entries
2020-12-14Merge tag 'x86_platform_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform updates from Borislav Petkov: - add a new uv_sysfs driver and expose read-only information from UV BIOS (Justin Ernst and Mike Travis) - the usual set of small fixes * tag 'x86_platform_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/platform/uv: Update sysfs documentation x86/platform/uv: Add deprecated messages to /proc info leaves x86/platform/uv: Add sysfs hubless leaves x86/platform/uv: Add sysfs leaves to replace those in procfs x86/platform/uv: Add kernel interfaces for obtaining system info x86/platform/uv: Make uv_pcibus_kset and uv_hubs_kset static x86/platform/uv: Fix an error code in uv_hubs_init() x86/platform/uv: Update MAINTAINERS for uv_sysfs driver x86/platform/uv: Update ABI documentation of /sys/firmware/sgi_uv/ x86/platform/uv: Add new uv_sysfs platform driver x86/platform/uv: Add and export uv_bios_* functions x86/platform/uv: Remove existing /sys/firmware/sgi_uv/ interface
2020-12-14Merge tag 'x86_cpu_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpuid updates from Borislav Petkov: "Only AMD-specific changes this time: - Save the AMD physical die ID into cpuinfo_x86.cpu_die_id and convert all code to use it (Yazen Ghannam) - Remove a dead and unused TSEG region remapping workaround on AMD (Arvind Sankar)" * tag 'x86_cpu_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu/amd: Remove dead code for TSEG region remapping x86/topology: Set cpu_die_id only if DIE_TYPE found EDAC/mce_amd: Use struct cpuinfo_x86.cpu_die_id for AMD NodeId x86/CPU/AMD: Remove amd_get_nb_id() x86/CPU/AMD: Save AMD NodeId as cpu_die_id
2020-12-14Merge tag 'x86_sgx_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SGC support from Borislav Petkov: "Intel Software Guard eXtensions enablement. This has been long in the making, we were one revision number short of 42. :) Intel SGX is new hardware functionality that can be used by applications to populate protected regions of user code and data called enclaves. Once activated, the new hardware protects enclave code and data from outside access and modification. Enclaves provide a place to store secrets and process data with those secrets. SGX has been used, for example, to decrypt video without exposing the decryption keys to nosy debuggers that might be used to subvert DRM. Software has generally been rewritten specifically to run in enclaves, but there are also projects that try to run limited unmodified software in enclaves. Most of the functionality is concentrated into arch/x86/kernel/cpu/sgx/ except the addition of a new mprotect() hook to control enclave page permissions and support for vDSO exceptions fixup which will is used by SGX enclaves. All this work by Sean Christopherson, Jarkko Sakkinen and many others" * tag 'x86_sgx_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits) x86/sgx: Return -EINVAL on a zero length buffer in sgx_ioc_enclave_add_pages() x86/sgx: Fix a typo in kernel-doc markup x86/sgx: Fix sgx_ioc_enclave_provision() kernel-doc comment x86/sgx: Return -ERESTARTSYS in sgx_ioc_enclave_add_pages() selftests/sgx: Use a statically generated 3072-bit RSA key x86/sgx: Clarify 'laundry_list' locking x86/sgx: Update MAINTAINERS Documentation/x86: Document SGX kernel architecture x86/sgx: Add ptrace() support for the SGX driver x86/sgx: Add a page reclaimer selftests/x86: Add a selftest for SGX x86/vdso: Implement a vDSO for Intel SGX enclave call x86/traps: Attempt to fixup exceptions in vDSO before signaling x86/fault: Add a helper function to sanitize error code x86/vdso: Add support for exception fixup in vDSO functions x86/sgx: Add SGX_IOC_ENCLAVE_PROVISION x86/sgx: Add SGX_IOC_ENCLAVE_INIT x86/sgx: Add SGX_IOC_ENCLAVE_ADD_PAGES x86/sgx: Add SGX_IOC_ENCLAVE_CREATE x86/sgx: Add an SGX misc driver interface ...
generated by cgit (git 2.34.1) at 2025-09-13 21:38:37 +0000