Signed-off-by: Cyrill Gorcunov <gorcu...@openvz.org> CC: Pavel Emelyanov <xe...@parallels.com> CC: Andrew Morton <a...@linux-foundation.org> CC: Peter Zijlstra <a.p.zijls...@chello.nl> --- Documentation/filesystems/proc.txt | 38 ++++++++++++++++++++++++++++++++++++- 1 file changed, 37 insertions(+), 1 deletion(-)
Index: linux-2.6.git/Documentation/filesystems/proc.txt =================================================================== --- linux-2.6.git.orig/Documentation/filesystems/proc.txt +++ linux-2.6.git/Documentation/filesystems/proc.txt @@ -142,7 +142,7 @@ Table 1-1: Process specific entries in / pagemap Page table stack Report full stack trace, enable via CONFIG_STACKTRACE smaps a extension based on maps, showing the memory consumption of - each mapping + each mapping and flags associated with it .............................................................................. For example, to get the status information of a process, all you have to do is @@ -415,6 +415,7 @@ Swap: 0 kB KernelPageSize: 4 kB MMUPageSize: 4 kB Locked: 374 kB +VmFlags: RD:1 WR:0 EX:1 SH:0 MR:1 MW:1 ME:1 MS:0 GD:0 PF:0 DW:1 LO:0 IO:0 SR:0 RR:0 DC:0 DE:0 AC:0 NR:0 HT:0 NL:0 AR:0 DD:0 MM:0 HG:0 NH:0 MG:0 The first of these lines shows the same information as is displayed for the mapping in /proc/PID/maps. The remaining lines show the size of the mapping @@ -430,6 +431,41 @@ and a page is modified, the file page is "Swap" shows how much would-be-anonymous memory is also used, but out on swap. +"VmFlags" field deserves a separate description. This member represents the kernel +flags associated with the particular virtual memory area in two letter encoded +manner. The codes are the following: + RD - readable + WR - writeable + EX - executable + SH - shared + MR - may read + MW - may write + ME - may execute + MS - may share + GD - stack segment growns down + PF - pure PFN range + DW - disabled write to the mapped file + LO - pages are locked in memory + IO - memory mapped I/O area + SR - sequential read advise provided + RR - random read advise provided + DC - do not copy area on fork + DE - do not expand area on remapping + AC - area is accountable + NR - swap space is not reserved for the area + HT - area uses huge tlb pages + NL - non-linear mapping + AR - architecture specific flag + DD - do not include area into core dump + MM - mixed map area + HG - huge page advise flag + NH - no-huge page advise flag + MG - mergable advise flag + +Note that there is no guarantee that every flag and associated mnemonic will +be present in all further kernel releases. Things get changed, the flags may +be vanished or the reverse -- new added. + This file is only present if the CONFIG_MMU kernel configuration option is enabled. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
