[Crash-utility] [PATCH v2] files: support dump file pages from its address space

Dave Anderson anderson at redhat.com
Fri Jun 19 16:23:39 UTC 2015



----- Original Message -----
> 
> > But more importantly with respect to the API is the change where you added the callback
> > argument to the do_radix_tree() function. The do_radix_tree API cannot be changed
> > without breaking any pre-existing extension modules that currently use it.
> 
> I have a question about extension modules support.
> 
> What is the exact meaning of pre-existing extension modules?

Simply any extension module that has already been compiled.

> 
> Are they the modules in crash source tree or outside of the source tree?

Primarily outside of the source tree.  The handful of extension modules that
are included in the crash source package are for the most part remnants of the
past, and I don't plan to add any more in the future.  

> 
> If a extension modules are maintained out side of crash source code tree, do
> we still need take care of it?

Yes -- by not breaking the API established by the contents of the "defs.h" file,
which is the only file contained within the crash-devel packages created by
the various distributions.

> 
> > Here's what I suggest. Instead of using RADIX_TREE_DUMP, create a new flag
> > RADIX_TREE_DUMP_CALLBACK, and you can store the callback function address inside
> > the general purpose pc->curcmd_private member.
> 
> I'm ok with use a different flag. Although I didn't find any source codes are
> using RADIX_TREE_DUMP flag.
> 
> But I had some concerns for storing callback address in pc->curcmd_private.
> 
> I noticed that the pc->curcmd_private is already used by other crash code at
> many locations.

Right, but only within the context of specific commands, such as "irq -u", "vm -M",
"search", "struct -f" and "runq -c".  Similar to using GETBUF(), the pc->curcmd_private
is only in effect within the period of time a particular command is running, and
is cleared by restore_sanity() prior to the next "crash> " prompt.

> 
> If someday people want to use the RADIX_TREE_DUMP_CALLBACK at that context,
> it may cause the troubles.

How?  If they want to do so within the context of a different command, they
can set the pc->curcmd_private field to their own function.   That's what 
it's designed to be used for.
 
> If we really don't want to add new args for do_radix_tree, maybe we can
> define a new global function pointer for this purpose.
> 
> If you don't like my suggestion, we also can consider to use RADIX_TREE_SEARCH.

Yes I suppose you could define a global pointer, but it doesn't offer any more
benefit or safety than using pc->curcmd_private.  You could use RADIX_TREE_SEARCH, 
or perhaps RADIX_TREE_COUNT/RADIX_TREE_GATHER.  But both of those options would 
seemingly be inefficient for large lists?  Having an option that utilizes a callback
function does seem to be the best way to do it.

How about this: have your new RADIX_TREE_DUMP_CALLBACK option use the rtp->value
(void *) member to store the callback function?  As long as it's documented, I would
have no problem accepting that as well.

Thanks,
  Dave






> 
> > And lastly (for now), I am a big believer in keeping things as simple as
> > possible.
> > 
> > You have added all of these constructs:
> > 
> > + #define AS_PAGE_TREE (0x20000000)
> > 
> > + #define IS_AS_PAGE_TREE() (vt->flags & AS_PAGE_TREE)
> > 
> > + MEMBER_OFFSET_INIT(address_space_page_tree, "address_space",
> > "page_tree");
> > + if (VALID_MEMBER(address_space_page_tree))
> > + vt->flags |= AS_PAGE_TREE;
> > 
> > + /*
> > + * Check the availability of address space page tree
> > + */
> > + int
> > + is_as_page_tree_supported(void)
> > + {
> > + return (IS_AS_PAGE_TREE() ? TRUE : FALSE);
> > + }
> > 
> > and where your code calls it twice:
> > 
> > + if (is_as_page_tree_supported()) {
> > 
> > + if (is_as_page_tree_supported())
> > 
> > Please get rid of AS_PAGE_TREE, IS_AS_PAGE_TREE() and
> > is_as_page_tree_supported()
> > and simply use "if (VALID_MEMBER(address_space_page_tree))". That's
> > precisely the
> > kind of situation that VALID_MEMBER() is meant to be used for.
> 
> Accept.
> 
> Thanks for your careful review. I do learn lot from your comments.
> 
> 
> > Thanks,
> > Dave
> > 
> > 
> > > 
> > > 
> > > files: support dump file pages from its address space
> > > 
> > > Added two options in files command,
> > > 
> > > 1. -M option, which allows dump address space and page number for each
> > > files
> > > 2. -m option, which could dump each pages in given address mapping
> > > 
> > > The foreach command also could work with -M, so that we can easily
> > > find which processes/files hold most page cache pages within the system.
> > > 
> > > Signed-off-by: Yong Yang <yangoliver at gmail.com>
> > > ---
> > > defs.h | 11 ++++++-
> > > filesys.c | 111
> > > +++++++++++++++++++++++++++++++++++++++++++++++++++-----------
> > > kernel.c | 4 +--
> > > memory.c | 73 +++++++++++++++++++++++++++++++++++++++++
> > > task.c | 25 +++++++++++---
> > > 5 files changed, 197 insertions(+), 27 deletions(-)
> > > 
> > > diff --git a/defs.h b/defs.h
> > > index b25b505..608e09f 100644
> > > --- a/defs.h
> > > +++ b/defs.h
> > > @@ -1111,6 +1111,7 @@ extern struct machdep_table *machdep;
> > > #define FOREACH_a_FLAG (0x4000000)
> > > #define FOREACH_G_FLAG (0x8000000)
> > > #define FOREACH_F_FLAG2 (0x10000000)
> > > +#define FOREACH_M_FLAG (0x20000000)
> > > 
> > > #define FOREACH_PS_EXCLUSIVE \
> > > (FOREACH_g_FLAG|FOREACH_a_FLAG|FOREACH_t_FLAG|FOREACH_c_FLAG|FOREACH_p_FLAG|FOREACH_l_FLAG|FOREACH_r_FLAG|FOREACH_m_FLAG)
> > > @@ -1416,6 +1417,7 @@ struct offset_table { /* stash of
> > > commonly-used offsets */
> > > long inode_i_flock;
> > > long inode_i_fop;
> > > long inode_i_mapping;
> > > + long address_space_page_tree;
> > > long address_space_nrpages;
> > > long vfsmount_mnt_next;
> > > long vfsmount_mnt_devname;
> > > @@ -2286,11 +2288,13 @@ struct vm_table { /* kernel VM-related
> > > data */
> > > #define PAGEFLAGS (0x4000000)
> > > #define SLAB_OVERLOAD_PAGE (0x8000000)
> > > #define SLAB_CPU_CACHE (0x10000000)
> > > +#define AS_PAGE_TREE (0x20000000)
> > > 
> > > #define IS_FLATMEM() (vt->flags & FLATMEM)
> > > #define IS_DISCONTIGMEM() (vt->flags & DISCONTIGMEM)
> > > #define IS_SPARSEMEM() (vt->flags & SPARSEMEM)
> > > #define IS_SPARSEMEM_EX() (vt->flags & SPARSEMEM_EX)
> > > +#define IS_AS_PAGE_TREE() (vt->flags & AS_PAGE_TREE)
> > > 
> > > #define COMMON_VADDR_SPACE() (vt->flags & COMMON_VADDR)
> > > #define PADDR_PRLEN (vt->paddr_prlen)
> > > @@ -2598,6 +2602,7 @@ struct load_module {
> > > #define PRINT_SINGLE_VMA (0x80)
> > > #define PRINT_RADIX_10 (0x100)
> > > #define PRINT_RADIX_16 (0x200)
> > > +#define PRINT_PAGES (0x400)
> > > 
> > > #define MIN_PAGE_SIZE (4096)
> > > 
> > > @@ -4707,6 +4712,9 @@ void alter_stackbuf(struct bt_info *);
> > > int vaddr_type(ulong, struct task_context *);
> > > char *format_stack_entry(struct bt_info *bt, char *, ulong, ulong);
> > > int in_user_stack(ulong, ulong);
> > > +void dump_file_address_mappings(ulong);
> > > +long get_page_tree_count(ulong i_mapping);
> > > +int is_as_page_tree_supported(void);
> > > 
> > > /*
> > > * filesys.c
> > > @@ -4747,12 +4755,13 @@ struct radix_tree_pair {
> > > ulong index;
> > > void *value;
> > > };
> > > -ulong do_radix_tree(ulong, int, struct radix_tree_pair *);
> > > +ulong do_radix_tree(ulong, int, struct radix_tree_pair *, int
> > > (*)(ulong));
> > > int file_dump(ulong, ulong, ulong, int, int);
> > > #define DUMP_FULL_NAME 1
> > > #define DUMP_INODE_ONLY 2
> > > #define DUMP_DENTRY_ONLY 4
> > > #define DUMP_EMPTY_FILE 8
> > > +#define DUMP_FILE_PAGE 16
> > > #endif /* !GDB_COMMON */
> > > int same_file(char *, char *);
> > > #ifndef GDB_COMMON
> > > diff --git a/filesys.c b/filesys.c
> > > index 0573fe6..f0ec78b 100644
> > > --- a/filesys.c
> > > +++ b/filesys.c
> > > @@ -2187,11 +2187,12 @@ cmd_files(void)
> > > int subsequent;
> > > struct reference reference, *ref;
> > > char *refarg;
> > > + int open_flags = 0;
> > > 
> > > ref = NULL;
> > > refarg = NULL;
> > > 
> > > - while ((c = getopt(argcnt, args, "d:R:")) != EOF) {
> > > + while ((c = getopt(argcnt, args, "d:R:m:M")) != EOF) {
> > > switch(c)
> > > {
> > > case 'R':
> > > @@ -2209,7 +2210,20 @@ cmd_files(void)
> > > value = htol(optarg, FAULT_ON_ERROR, NULL);
> > > display_dentry_info(value);
> > > return;
> > > -
> > > + case 'm':
> > > + if (is_as_page_tree_supported()) {
> > > + value = htol(optarg, FAULT_ON_ERROR, NULL);
> > > + dump_file_address_mappings(value);
> > > + } else {
> > > + option_not_supported('m');
> > > + }
> > > + return;
> > > + case 'M':
> > > + if (is_as_page_tree_supported())
> > > + open_flags |= PRINT_PAGES;
> > > + else
> > > + option_not_supported('M');
> > > + break;
> > > default:
> > > argerrs++;
> > > break;
> > > @@ -2222,7 +2236,9 @@ cmd_files(void)
> > > if (!args[optind]) {
> > > if (!ref)
> > > print_task_header(fp, CURRENT_CONTEXT(), 0);
> > > - open_files_dump(CURRENT_TASK(), 0, ref);
> > > +
> > > + open_files_dump(CURRENT_TASK(), open_flags, ref);
> > > +
> > > return;
> > > }
> > > 
> > > @@ -2241,7 +2257,7 @@ cmd_files(void)
> > > for (tc = pid_to_context(value); tc; tc =
> > > tc->tc_next) {
> > > if (!ref)
> > > print_task_header(fp, tc,
> > > subsequent);
> > > - open_files_dump(tc->task, 0, ref);
> > > + open_files_dump(tc->task, open_flags, ref);
> > > fprintf(fp, "\n");
> > > }
> > > break;
> > > @@ -2249,7 +2265,7 @@ cmd_files(void)
> > > case STR_TASK:
> > > if (!ref)
> > > print_task_header(fp, tc, subsequent);
> > > - open_files_dump(tc->task, 0, ref);
> > > + open_files_dump(tc->task, open_flags, ref);
> > > break;
> > > 
> > > case STR_INVALID:
> > > @@ -2321,6 +2337,7 @@ open_files_dump(ulong task, int flags, struct
> > > reference
> > > *ref)
> > > char buf4[BUFSIZE];
> > > char root_pwd[BUFSIZE];
> > > int root_pwd_printed = 0;
> > > + int file_dump_flags = 0;
> > > 
> > > BZERO(root_pathname, BUFSIZE);
> > > BZERO(pwd_pathname, BUFSIZE);
> > > @@ -2329,15 +2346,27 @@ open_files_dump(ulong task, int flags, struct
> > > reference *ref)
> > > fdtable_buf = GETBUF(SIZE(fdtable));
> > > fill_task_struct(task);
> > > 
> > > - sprintf(files_header, " FD%s%s%s%s%s%s%sTYPE%sPATH\n",
> > > - space(MINSPACE),
> > > - mkstring(buf1, VADDR_PRLEN, CENTER|LJUST, "FILE"),
> > > - space(MINSPACE),
> > > - mkstring(buf2, VADDR_PRLEN, CENTER|LJUST, "DENTRY"),
> > > - space(MINSPACE),
> > > - mkstring(buf3, VADDR_PRLEN, CENTER|LJUST, "INODE"),
> > > - space(MINSPACE),
> > > - space(MINSPACE));
> > > + if (flags & PRINT_PAGES) {
> > > + sprintf(files_header, " FD%s%s%s%s%s%s%sTYPE%sPATH\n",
> > > + space(MINSPACE),
> > > + mkstring(buf1, VADDR_PRLEN, CENTER|LJUST, "ADDR-SPACE"),
> > > + space(MINSPACE),
> > > + mkstring(buf2, VADDR_PRLEN, CENTER|LJUST, "PAGE-COUNT"),
> > > + space(MINSPACE),
> > > + mkstring(buf3, VADDR_PRLEN, CENTER|LJUST, "INODE"),
> > > + space(MINSPACE),
> > > + space(MINSPACE));
> > > + } else {
> > > + sprintf(files_header, " FD%s%s%s%s%s%s%sTYPE%sPATH\n",
> > > + space(MINSPACE),
> > > + mkstring(buf1, VADDR_PRLEN, CENTER|LJUST, "FILE"),
> > > + space(MINSPACE),
> > > + mkstring(buf2, VADDR_PRLEN, CENTER|LJUST, "DENTRY"),
> > > + space(MINSPACE),
> > > + mkstring(buf3, VADDR_PRLEN, CENTER|LJUST, "INODE"),
> > > + space(MINSPACE),
> > > + space(MINSPACE));
> > > + }
> > > 
> > > tc = task_to_context(task);
> > > 
> > > @@ -2523,6 +2552,10 @@ open_files_dump(ulong task, int flags, struct
> > > reference *ref)
> > > return;
> > > }
> > > 
> > > + file_dump_flags = DUMP_FULL_NAME | DUMP_EMPTY_FILE;
> > > + if (flags & PRINT_PAGES)
> > > + file_dump_flags |= DUMP_FILE_PAGE;
> > > +
> > > j = 0;
> > > for (;;) {
> > > unsigned long set;
> > > @@ -2539,8 +2572,7 @@ open_files_dump(ulong task, int flags, struct
> > > reference
> > > *ref)
> > > 
> > > if (ref && file) {
> > > open_tmpfile();
> > > - if (file_dump(file, 0, 0, i,
> > > - DUMP_FULL_NAME|DUMP_EMPTY_FILE))
> > > {
> > > + if (file_dump(file, 0, 0, i,
> > > file_dump_flags)) {
> > > BZERO(buf4, BUFSIZE);
> > > rewind(pc->tmpfile);
> > > ret = fgets(buf4, BUFSIZE,
> > > @@ -2558,8 +2590,7 @@ open_files_dump(ulong task, int flags, struct
> > > reference
> > > *ref)
> > > fprintf(fp, "%s", files_header);
> > > header_printed = 1;
> > > }
> > > - file_dump(file, 0, 0, i,
> > > - DUMP_FULL_NAME|DUMP_EMPTY_FILE);
> > > + file_dump(file, 0, 0, i, file_dump_flags);
> > > }
> > > }
> > > i++;
> > > @@ -2754,6 +2785,8 @@ file_dump(ulong file, ulong dentry, ulong inode,
> > > int
> > > fd, int flags)
> > > char buf1[BUFSIZE];
> > > char buf2[BUFSIZE];
> > > char buf3[BUFSIZE];
> > > + ulong i_mapping = 0;
> > > + ulong count = 0;
> > > 
> > > file_buf = NULL;
> > > 
> > > @@ -2863,6 +2896,28 @@ file_dump(ulong file, ulong dentry, ulong inode,
> > > int
> > > fd, int flags)
> > > type,
> > > space(MINSPACE),
> > > pathname+1);
> > > + } else if (flags & DUMP_FILE_PAGE) {
> > > + i_mapping = ULONG(inode_buf + OFFSET(inode_i_mapping));
> > > + count = get_page_tree_count(i_mapping);
> > > +
> > > + fprintf(fp, "%3d%s%s%s%s%s%s%s%s%s%s\n",
> > > + fd,
> > > + space(MINSPACE),
> > > + mkstring(buf1, VADDR_PRLEN,
> > > + CENTER|RJUST|LONG_HEX,
> > > + MKSTR(i_mapping)),
> > > + space(MINSPACE),
> > > + mkstring(buf2, VADDR_PRLEN,
> > > + CENTER|RJUST|LONG_DEC,
> > > + MKSTR(count)),
> > > + space(MINSPACE),
> > > + mkstring(buf3, VADDR_PRLEN,
> > > + CENTER|RJUST|LONG_HEX,
> > > + MKSTR(inode)),
> > > + space(MINSPACE),
> > > + type,
> > > + space(MINSPACE),
> > > + pathname);
> > > } else {
> > > fprintf(fp, "%3d%s%s%s%s%s%s%s%s%s%s\n",
> > > fd,
> > > @@ -3877,9 +3932,13 @@ ulong RADIX_TREE_MAP_MASK = UNINITIALIZED;
> > > * RADIX_TREE_GATHER; the dimension (max count) of the array may
> > > * be stored in the index field of the first structure to avoid
> > > * any chance of an overrun.
> > > + *
> > > + * entry_ops: The operation against each of returned entry value.
> > > + * Only used by RADIX_TREE_DUMP.
> > > */
> > > ulong
> > > -do_radix_tree(ulong root, int flag, struct radix_tree_pair *rtp)
> > > +do_radix_tree(ulong root, int flag, struct radix_tree_pair *rtp,
> > > + int (*entry_ops)(ulong))
> > > {
> > > int i, ilen, height;
> > > long nlen;
> > > @@ -3970,7 +4029,19 @@ do_radix_tree(ulong root, int flag, struct
> > > radix_tree_pair *rtp)
> > > for (index = count = 0; index <= maxindex; index++) {
> > > if ((ret =
> > > radix_tree_lookup(root_rnode, index, height))) {
> > > - fprintf(fp, "[%ld] %lx\n", index, (ulong)ret);
> > > + if (entry_ops == NULL) {
> > > + /* Default operation */
> > > + fprintf(fp, "[%ld] %lx\n",
> > > + index, (ulong)ret);
> > > + } else {
> > > + /* Caller defined operation */
> > > + if (entry_ops((ulong)ret) != 0) {
> > > + error(FATAL, "do_radix_tree: "
> > > + "dump operation failed, "
> > > + "count: %ld\n", count);
> > > + return -EIO;
> > > + }
> > > + }
> > > count++;
> > > }
> > > }
> > > diff --git a/kernel.c b/kernel.c
> > > index cb8084a..53d2e1d 100644
> > > --- a/kernel.c
> > > +++ b/kernel.c
> > > @@ -5746,12 +5746,12 @@ get_irq_desc_addr(int irq)
> > > return addr;
> > > 
> > > cnt = do_radix_tree(symbol_value("irq_desc_tree"),
> > > - RADIX_TREE_COUNT, NULL);
> > > + RADIX_TREE_COUNT, NULL, NULL);
> > > len = sizeof(struct radix_tree_pair) * (cnt+1);
> > > rtp = (struct radix_tree_pair *)GETBUF(len);
> > > rtp[0].index = cnt;
> > > cnt = do_radix_tree(symbol_value("irq_desc_tree"),
> > > - RADIX_TREE_GATHER, rtp);
> > > + RADIX_TREE_GATHER, rtp, NULL);
> > > 
> > > if (kt->highest_irq == 0)
> > > kt->highest_irq = rtp[cnt-1].index;
> > > diff --git a/memory.c b/memory.c
> > > index 765732b..0102dbc 100644
> > > --- a/memory.c
> > > +++ b/memory.c
> > > @@ -292,6 +292,7 @@ static void dump_per_cpu_offsets(void);
> > > static void dump_page_flags(ulonglong);
> > > static ulong kmem_cache_nodelists(ulong);
> > > static void dump_hstates(void);
> > > +static int dump_file_page(ulong);
> > > 
> > > /*
> > > * Memory display modes specific to this file.
> > > @@ -476,6 +477,9 @@ vm_init(void)
> > > MEMBER_OFFSET_INIT(block_device_bd_list, "block_device", "bd_list");
> > > MEMBER_OFFSET_INIT(block_device_bd_disk, "block_device", "bd_disk");
> > > MEMBER_OFFSET_INIT(inode_i_mapping, "inode", "i_mapping");
> > > + MEMBER_OFFSET_INIT(address_space_page_tree, "address_space",
> > > "page_tree");
> > > + if (VALID_MEMBER(address_space_page_tree))
> > > + vt->flags |= AS_PAGE_TREE;
> > > MEMBER_OFFSET_INIT(address_space_nrpages, "address_space", "nrpages");
> > > if (INVALID_MEMBER(address_space_nrpages))
> > > MEMBER_OFFSET_INIT(address_space_nrpages, "address_space", "__nrpages");
> > > @@ -6465,6 +6469,75 @@ translate_page_flags(char *buffer, ulong flags)
> > > }
> > > 
> > > /*
> > > + * Page tree dump ops.
> > > + */
> > > +static int
> > > +dump_file_page(ulong page)
> > > +{
> > > + struct meminfo meminfo;
> > > +
> > > + BZERO(&meminfo, sizeof(struct meminfo));
> > > + meminfo.spec_addr = page;
> > > + meminfo.memtype = KVADDR;
> > > + meminfo.flags = ADDRESS_SPECIFIED;
> > > + dump_mem_map(&meminfo);
> > > +
> > > + return 0;
> > > +}
> > > +
> > > +/*
> > > + * The address space file mapping radix tree walker.
> > > + */
> > > +void
> > > +dump_file_address_mappings(ulong i_mapping)
> > > +{
> > > + ulong root_rnode;
> > > + ulong count;
> > > +
> > > + root_rnode = i_mapping + OFFSET(address_space_page_tree);
> > > + count = get_page_tree_count(i_mapping);
> > > + fprintf(fp, "Address Space %lx, page tree %lx, %ld pages\n\n",
> > > + i_mapping, root_rnode, count);
> > > +
> > > + /* Dump each pages in radix tree */
> > > + (void) do_radix_tree(root_rnode, RADIX_TREE_DUMP,
> > > + NULL, &dump_file_page);
> > > +
> > > + return;
> > > +}
> > > +
> > > +/*
> > > + * Get the page count for the specific mapping
> > > + */
> > > +long
> > > +get_page_tree_count(ulong i_mapping)
> > > +{
> > > + ulong address_space = i_mapping;
> > > + char *address_space_buf;
> > > + ulong nrpages = 0;
> > > +
> > > + address_space_buf = GETBUF(SIZE(address_space));
> > > +
> > > + readmem(address_space, KVADDR, address_space_buf,
> > > + SIZE(address_space), "address_space buffer",
> > > + FAULT_ON_ERROR);
> > > + nrpages = ULONG(address_space_buf + OFFSET(address_space_nrpages));
> > > +
> > > + FREEBUF(address_space_buf);
> > > +
> > > + return nrpages;
> > > +}
> > > +
> > > +/*
> > > + * Check the availability of address space page tree
> > > + */
> > > +int
> > > +is_as_page_tree_supported(void)
> > > +{
> > > + return (IS_AS_PAGE_TREE() ? TRUE : FALSE);
> > > +}
> > > +
> > > +/*
> > > * dump_page_hash_table() displays the entries in each page_hash_table.
> > > */
> > > 
> > > diff --git a/task.c b/task.c
> > > index 45be68c..4c95259 100644
> > > --- a/task.c
> > > +++ b/task.c
> > > @@ -5612,7 +5612,7 @@ cmd_foreach(void)
> > > BZERO(&foreach_data, sizeof(struct foreach_data));
> > > fd = &foreach_data;
> > > 
> > > - while ((c = getopt(argcnt, args, "R:vomlgersStTpukcfFxhdaG")) !=
> > > EOF) {
> > > + while ((c = getopt(argcnt, args, "R:vomMlgersStTpukcfFxhdaG")) !=
> > > EOF) {
> > > switch(c)
> > > {
> > > case 'R':
> > > @@ -5636,6 +5636,10 @@ cmd_foreach(void)
> > > fd->flags |= FOREACH_m_FLAG;
> > > break;
> > > 
> > > + case 'M':
> > > + fd->flags |= FOREACH_M_FLAG;
> > > + break;
> > > +
> > > case 'l':
> > > fd->flags |= FOREACH_l_FLAG;
> > > break;
> > > @@ -6140,6 +6144,13 @@ foreach(struct foreach_data *fd)
> > > print_header = FALSE;
> > > break;
> > > 
> > > + case FOREACH_FILES:
> > > + if (fd->flags & FOREACH_m_FLAG)
> > > + error(FATAL,
> > > + "foreach files command does not "
> > > + "support -m option\n");
> > > + break;
> > > +
> > > case FOREACH_TEST:
> > > break;
> > > }
> > > @@ -6366,9 +6377,15 @@ foreach(struct foreach_data *fd)
> > > 
> > > case FOREACH_FILES:
> > > pc->curcmd = "files";
> > > - open_files_dump(tc->task,
> > > - fd->flags & FOREACH_i_FLAG ?
> > > - PRINT_INODES : 0,
> > > + cmdflags = 0;
> > > +
> > > + if (fd->flags & FOREACH_i_FLAG)
> > > + cmdflags |= PRINT_INODES;
> > > + if (fd->flags & FOREACH_M_FLAG)
> > > + cmdflags |= PRINT_PAGES;
> > > +
> > > + open_files_dump(tc->task,
> > > + cmdflags,
> > > fd->reference ? ref : NULL);
> > > break;
> > > 
> > > --
> > > 1.9.1
> > > 
> > > --
> > > Crash-utility mailing list
> > > Crash-utility at redhat.com
> > > https://www.redhat.com/mailman/listinfo/crash-utility
> > > 
> > 
> > --
> > Crash-utility mailing list
> > Crash-utility at redhat.com
> > https://www.redhat.com/mailman/listinfo/crash-utility
> 
> --
> Crash-utility mailing list
> Crash-utility at redhat.com
> https://www.redhat.com/mailman/listinfo/crash-utility




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