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0d56a4518d
linux/fs/proc
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Christian Brauner 0d56a4518d
stat: handle idmapped mounts 
The generic_fillattr() helper fills in the basic attributes associated
with an inode. Enable it to handle idmapped mounts. If the inode is
accessed through an idmapped mount map it into the mount's user
namespace before we store the uid and gid. If the initial user namespace
is passed nothing changes so non-idmapped mounts will see identical
behavior as before.

Link: https://lore.kernel.org/r/20210121131959.646623-12-christian.brauner@ubuntu.com
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: James Morris <jamorris@linux.microsoft.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2021-01-24 14:27:17 +01:00
..
array.c proc: provide details on indirect branch speculation 2020-12-15 22:46:15 -08:00
base.c stat: handle idmapped mounts 2021-01-24 14:27:17 +01:00
bootconfig.c proc/bootconfig: Fix to use correct quotes for value 2020-06-16 21:21:03 -04:00
cmdline.c
consoles.c
cpuinfo.c proc/cpuinfo: switch to ->read_iter 2020-11-06 10:05:18 -08:00
devices.c block: move block-related definitions out of fs.h 2020-06-24 09:16:02 -06:00
fd.c namei: make permission helpers idmapped mount aware 2021-01-24 14:27:16 +01:00
fd.h
generic.c stat: handle idmapped mounts 2021-01-24 14:27:17 +01:00
inode.c proc: wire up generic_file_splice_read for iter ops 2020-11-06 10:05:18 -08:00
internal.h fs/proc: make pde_get() return nothing 2020-12-15 22:46:15 -08:00
interrupts.c
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
kcore.c arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL 2020-12-15 12:13:42 -08:00
kmsg.c proc: faster open/read/close with "permanent" files 2020-04-07 10:43:42 -07:00
loadavg.c
Makefile
meminfo.c mm: memcontrol: account pagetables per node 2020-12-15 12:13:40 -08:00
namespaces.c Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-01-29 11:20:24 -08:00
nommu.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
page.c mm: Add PG_arch_2 page flag 2020-09-04 12:46:06 +01:00
proc_net.c stat: handle idmapped mounts 2021-01-24 14:27:17 +01:00
proc_sysctl.c stat: handle idmapped mounts 2021-01-24 14:27:17 +01:00
proc_tty.c
root.c stat: handle idmapped mounts 2021-01-24 14:27:17 +01:00
self.c proc: don't allow async path resolution of /proc/self components 2020-11-13 16:47:52 -07:00
softirqs.c
stat.c time-namespace-v5.11 2020-12-14 16:35:39 -08:00
task_mmu.c mm: don't play games with pinned pages in clear_page_refs 2021-01-16 10:51:26 -08:00
task_nommu.c mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
thread_self.c proc: Use new_inode not new_inode_pseudo 2020-06-12 14:13:33 -05:00
uptime.c fs/proc: Respect boottime inside time namespace for /proc/uptime 2020-01-14 12:20:56 +01:00
util.c
version.c
vmcore.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00