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| author | Glauber Costa <glommer@parallels.com> | 2012-10-19 18:20:26 +0400 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2012-10-24 09:38:38 +0300 |
| commit | bcee6e2a13d580f6c21d748fcd7239ccc66cb4b8 (patch) | |
| tree | 5852e9c608b292605426156dcafaadf1d32709c4 /mm/slab_common.c | |
| parent | b7454ad3cfc3043c5264729a6204f049fe1f34b1 (diff) | |
| download | linux-rt-bcee6e2a13d580f6c21d748fcd7239ccc66cb4b8.tar.gz | |
mm/sl[au]b: Move print_slabinfo_header to slab_common.c
The header format is highly similar between slab and slub. The main
difference lays in the fact that slab may optionally have statistics
added here in case of CONFIG_SLAB_DEBUG, while the slub will stick them
somewhere else.
By making sure that information conditionally lives inside a
globally-visible CONFIG_DEBUG_SLAB switch, we can move the header
printing to a common location.
Signed-off-by: Glauber Costa <glommer@parallels.com>
Acked-by: Christoph Lameter <cl@linux.com>
CC: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slab_common.c')
| -rw-r--r-- | mm/slab_common.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c index 2e4b4c6d89e2..c64a0438c1f3 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -196,6 +196,29 @@ int slab_is_available(void) } #ifdef CONFIG_SLABINFO +static void print_slabinfo_header(struct seq_file *m) +{ + /* + * Output format version, so at least we can change it + * without _too_ many complaints. + */ +#ifdef CONFIG_DEBUG_SLAB + seq_puts(m, "slabinfo - version: 2.1 (statistics)\n"); +#else + seq_puts(m, "slabinfo - version: 2.1\n"); +#endif + seq_puts(m, "# name <active_objs> <num_objs> <objsize> " + "<objperslab> <pagesperslab>"); + seq_puts(m, " : tunables <limit> <batchcount> <sharedfactor>"); + seq_puts(m, " : slabdata <active_slabs> <num_slabs> <sharedavail>"); +#ifdef CONFIG_DEBUG_SLAB + seq_puts(m, " : globalstat <listallocs> <maxobjs> <grown> <reaped> " + "<error> <maxfreeable> <nodeallocs> <remotefrees> <alienoverflow>"); + seq_puts(m, " : cpustat <allochit> <allocmiss> <freehit> <freemiss>"); +#endif + seq_putc(m, '\n'); +} + static void *s_start(struct seq_file *m, loff_t *pos) { loff_t n = *pos; |