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2015-06-30scripts/gdb: remove useless global instructionThiébaud Weksteen
Signed-off-by: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30scripts/gdb: add ps commandThiébaud Weksteen
Signed-off-by: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30scripts/gdb: fix PEP8 complianceThiébaud Weksteen
Signed-off-by: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30scripts/gdb: fix typo in exception nameThiébaud Weksteen
Signed-off-by: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30scripts/gdb: enable completion for lx-list-check parameterJan Kiszka
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30scripts/gdb: also allow list_head pointer as lx-list-check paramterJan Kiszka
This makes the usage more flexible. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30scripts/gdb: add command to check list consistencyThiébaud Weksteen
Add a gdb script to verify the consistency of lists. Signed-off-by: Thiébaud Weksteen <thiebaud@weksteen.fr> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-28scripts/gdb: fix lx-lsmod refcntAdrien Schildknecht
Commit 2f35c41f58a9 ("module: Replace module_ref with atomic_t refcnt") changes the way refcnt is handled but did not update the gdb script to use the new variable. Since refcnt is not per-cpu anymore, we can directly read its value. Signed-off-by: Adrien Schildknecht <adrien+dev@schischi.me> Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Pantelis Koukousoulas <pktoss@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-28scripts/gdb: add empty package initialization scriptJan Kiszka
This got lost during the initial merge process: Python requires an __init__.py script, even if empty, in order to accept a directory as package. Add it, this time as a non-empty file. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: disable pagination while printing from breakpoint handlerJan Kiszka
While reporting the (refreshed) list of modules on automatic updates we may hit the page boundary of the output console and cause a stop if pagination is enabled. However, gdb does not accept user input while running over the breakpoint handler. So we get stuck, and the user is forced to interrupt gdb. Resolve this by disabling pagination during automatic symbol updates. We restore the user's configuration once done. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: convert CpuList to generator functionJan Kiszka
Yet another code simplification. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: convert ModuleList to generator functionJan Kiszka
Analogously to the task list, convert the module list to a generator function. It noticeably simplifies the code. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: use a generator instead of iterator for task listDaniel Wagner
The iterator does not return any task_struct from the thread_group list because the first condition in the 'if not t or ...' will only be the first time None. Instead of keeping track of the state ourself in the next() function, we fall back using Python's generator. Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: ignore byte-compiled python filesDaniel Thompson
Using the gdb scripts leaves byte-compiled python files in the scripts/ directory. These should be ignored by git. [jan.kiszka@siemens.com: drop redundant mrproper rule as suggested by Michal] Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Michal Marek <mmarek@suse.cz> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-12 01:18:42 +0000
pan> bufmax) { const struct nfs_fscache_key *key; const struct nfs_server *nfss = cookie_netfs_data; uint16_t len; key = nfss->fscache_key; len = sizeof(key->key) + key->key.uniq_len; if (len > bufmax) { len = 0; } else { memcpy(buffer, &key->key, sizeof(key->key)); memcpy(buffer + sizeof(key->key), key->key.uniquifier, key->key.uniq_len); } return len; } /* * Define the superblock object for FS-Cache. This is used to describe a * superblock object to fscache_acquire_cookie(). It is keyed by all the NFS * parameters that might cause a separate superblock. */ const struct fscache_cookie_def nfs_fscache_super_index_def = { .name = "NFS.super", .type = FSCACHE_COOKIE_TYPE_INDEX, .get_key = nfs_super_get_key, }; /* * Definition of the auxiliary data attached to NFS inode storage objects * within the cache. * * The contents of this struct are recorded in the on-disk local cache in the * auxiliary data attached to the data storage object backing an inode. This * permits coherency to be managed when a new inode binds to an already extant * cache object. */ struct nfs_fscache_inode_auxdata { struct timespec mtime; struct timespec ctime; loff_t size; u64 change_attr; }; /* * Generate a key to describe an NFS inode in an NFS server's index */ static uint16_t nfs_fscache_inode_get_key(const void *cookie_netfs_data, void *buffer, uint16_t bufmax) { const struct nfs_inode *nfsi = cookie_netfs_data; uint16_t nsize; /* use the inode's NFS filehandle as the key */ nsize = nfsi->fh.size; memcpy(buffer, nfsi->fh.data, nsize); return nsize; } /* * Get certain file attributes from the netfs data * - This function can be absent for an index * - Not permitted to return an error * - The netfs data from the cookie being used as the source is presented */ static void nfs_fscache_inode_get_attr(const void *cookie_netfs_data, uint64_t *size) { const struct nfs_inode *nfsi = cookie_netfs_data; *size = nfsi->vfs_inode.i_size; } /* * Get the auxiliary data from netfs data * - This function can be absent if the index carries no state data * - Should store the auxiliary data in the buffer * - Should return the amount of amount stored * - Not permitted to return an error * - The netfs data from the cookie being used as the source is presented */ static uint16_t nfs_fscache_inode_get_aux(const void *cookie_netfs_data, void *buffer, uint16_t bufmax) { struct nfs_fscache_inode_auxdata auxdata; const struct nfs_inode *nfsi = cookie_netfs_data; memset(&auxdata, 0, sizeof(auxdata)); auxdata.size = nfsi->vfs_inode.i_size; auxdata.mtime = nfsi->vfs_inode.i_mtime; auxdata.ctime = nfsi->vfs_inode.i_ctime; if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4) auxdata.change_attr = nfsi->vfs_inode.i_version; if (bufmax > sizeof(auxdata)) bufmax = sizeof(auxdata); memcpy(buffer, &auxdata, bufmax); return bufmax; } /* * Consult the netfs about the state of an object * - This function can be absent if the index carries no state data * - The netfs data from the cookie being used as the target is * presented, as is the auxiliary data */ static enum fscache_checkaux nfs_fscache_inode_check_aux(void *cookie_netfs_data, const void *data, uint16_t datalen) { struct nfs_fscache_inode_auxdata auxdata; struct nfs_inode *nfsi = cookie_netfs_data; if (datalen != sizeof(auxdata)) return FSCACHE_CHECKAUX_OBSOLETE; memset(&auxdata, 0, sizeof(auxdata)); auxdata.size = nfsi->vfs_inode.i_size; auxdata.mtime = nfsi->vfs_inode.i_mtime; auxdata.ctime = nfsi->vfs_inode.i_ctime; if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4) auxdata.change_attr = nfsi->vfs_inode.i_version; if (memcmp(data, &auxdata, datalen) != 0) return FSCACHE_CHECKAUX_OBSOLETE; return FSCACHE_CHECKAUX_OKAY; } /* * Indication from FS-Cache that the cookie is no longer cached * - This function is called when the backing store currently caching a cookie * is removed * - The netfs should use this to clean up any markers indicating cached pages * - This is mandatory for any object that may have data */ static void nfs_fscache_inode_now_uncached(void *cookie_netfs_data) { struct nfs_inode *nfsi = cookie_netfs_data; struct pagevec pvec; pgoff_t first; int loop, nr_pages; pagevec_init(&pvec, 0); first = 0; dprintk("NFS: nfs_inode_now_uncached: nfs_inode 0x%p\n", nfsi); for (;;) { /* grab a bunch of pages to unmark */ nr_pages = pagevec_lookup(&pvec, nfsi->vfs_inode.i_mapping, first, PAGEVEC_SIZE - pagevec_count(&pvec)); if (!nr_pages) break; for (loop = 0; loop < nr_pages; loop++) ClearPageFsCache(pvec.pages[loop]); first = pvec.pages[nr_pages - 1]->index + 1; pvec.nr = nr_pages; pagevec_release(&pvec); cond_resched(); } } /* * Get an extra reference on a read context. * - This function can be absent if the completion function doesn't require a * context. * - The read context is passed back to NFS in the event that a data read on the * cache fails with EIO - in which case the server must be contacted to * retrieve the data, which requires the read context for security. */ static void nfs_fh_get_context(void *cookie_netfs_data, void *context) { get_nfs_open_context(context); } /* * Release an extra reference on a read context. * - This function can be absent if the completion function doesn't require a * context. */ static void nfs_fh_put_context(void *cookie_netfs_data, void *context) { if (context) put_nfs_open_context(context); } /* * Define the inode object for FS-Cache. This is used to describe an inode * object to fscache_acquire_cookie(). It is keyed by the NFS file handle for * an inode. * * Coherency is managed by comparing the copies of i_size, i_mtime and i_ctime * held in the cache auxiliary data for the data storage object with those in * the inode struct in memory. */ const struct fscache_cookie_def nfs_fscache_inode_object_def = { .name = "NFS.fh", .type = FSCACHE_COOKIE_TYPE_DATAFILE, .