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linux-sg2042/fs/xfs
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Christian Brauner 2f221d6f7b
attr: handle idmapped mounts 
When file attributes are changed most filesystems rely on the
setattr_prepare(), setattr_copy(), and notify_change() helpers for
initialization and permission checking. Let them handle idmapped mounts.
If the inode is accessed through an idmapped mount map it into the
mount's user namespace. Afterwards the checks are identical to
non-idmapped mounts. If the initial user namespace is passed nothing
changes so non-idmapped mounts will see identical behavior as before.

Helpers that perform checks on the ia_uid and ia_gid fields in struct
iattr assume that ia_uid and ia_gid are intended values and have already
been mapped correctly at the userspace-kernelspace boundary as we
already do today. 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/20210121131959.646623-8-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>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
 		2021-01-24 14:27:16 +01:00
..
libxfs xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
scrub xfs: don't catch dax+reflink inodes as corruption in verifier 2020-12-09 09:49:38 -08:00
Kconfig xfs: fix Kconfig asking about XFS_SUPPORT_V4 when XFS_FS=n 2020-10-16 15:34:28 -07:00
Makefile xfs: refactor log recovery item sorting into a generic dispatch structure 2020-05-08 08:49:58 -07:00
kmem.c xfs: remove kmem_realloc() 2020-09-06 18:05:51 -07:00
kmem.h xfs: Remove kmem_zalloc_large() 2020-09-15 20:52:41 -07:00
mrlock.h
…
xfs.h
…
xfs_acl.c xfs: open code updating i_mode in xfs_set_acl 2020-12-12 10:49:38 -08:00
xfs_acl.h xfs: improve xfs_forget_acl 2020-03-02 20:55:55 -08:00
xfs_aops.c xfs: fix missing CoW blocks writeback conversion retry 2020-11-04 08:52:47 -08:00
xfs_aops.h
…
xfs_attr_inactive.c xfs: cleanup xfs_idestroy_fork 2020-05-19 09:40:59 -07:00
xfs_attr_list.c xfs: Convert xfs_attr_sf macros to inline functions 2020-09-15 20:52:42 -07:00
xfs_bio_io.c
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xfs_bmap_item.c xfs: refactor file range validation 2020-12-09 09:49:38 -08:00
xfs_bmap_item.h xfs: refactor intent item RECOVERED flag into the log item 2020-05-08 08:50:01 -07:00
xfs_bmap_util.c xfs: fix fallocate functions when rtextsize is larger than 1 2020-10-21 09:05:19 -07:00
xfs_bmap_util.h
…
xfs_buf.c xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
xfs_buf.h xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
xfs_buf_item.c xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
xfs_buf_item.h xfs: move the buffer retry logic to xfs_buf.c 2020-09-15 20:52:38 -07:00
xfs_buf_item_recover.c xfs: fix finobt btree block recovery ordering 2020-09-30 07:28:52 -07:00
xfs_dir2_readdir.c xfs: move the fork format fields into struct xfs_ifork 2020-05-19 09:40:58 -07:00
xfs_discard.c xfs: remove XFS_BUF_TO_AGF 2020-03-11 09:11:39 -07:00
xfs_discard.h
…
xfs_dquot.c xfs: fix some comments 2020-09-25 11:34:07 -07:00
xfs_dquot.h xfs: refactor default quota grace period setting code 2020-09-15 20:52:40 -07:00
xfs_dquot_item.c xfs: stop using q_core.d_id in the quota code 2020-07-28 20:24:14 -07:00
xfs_dquot_item.h xfs: factor out quotaoff intent AIL removal and memory free 2020-03-18 08:12:23 -07:00
xfs_dquot_item_recover.c xfs: rename the ondisk dquot d_flags to d_type 2020-07-28 20:24:14 -07:00
xfs_error.c xfs: random buffer write failure errortag 2020-05-07 08:27:48 -07:00
xfs_error.h xfs: xfs_buf_corruption_error should take __this_address 2020-03-12 07:58:12 -07:00
xfs_export.c xfs: delete duplicated words + other fixes 2020-08-05 08:49:58 -07:00
xfs_export.h
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xfs_extent_busy.c
…
xfs_extent_busy.h
…
xfs_extfree_item.c xfs: refactor data device extent validation 2020-12-09 09:49:38 -08:00
xfs_extfree_item.h xfs: refactor intent item RECOVERED flag into the log item 2020-05-08 08:50:01 -07:00
xfs_file.c xfs: fix fallocate functions when rtextsize is larger than 1 2020-10-21 09:05:19 -07:00
xfs_filestream.c xfs: drop the obsolete comment on filestream locking 2020-09-25 11:34:08 -07:00
xfs_filestream.h
…
xfs_fsmap.c xfs: fix deadlock and streamline xfs_getfsmap performance 2020-10-07 08:40:29 -07:00
xfs_fsmap.h xfs: fix deadlock and streamline xfs_getfsmap performance 2020-10-07 08:40:29 -07:00
xfs_fsops.c New code for 5.11: 2020-12-18 12:50:18 -08:00
xfs_fsops.h
…
xfs_globals.c
…
xfs_health.c
…
xfs_icache.c xfs: Remove unneeded semicolon 2020-09-15 20:52:42 -07:00
xfs_icache.h xfs: remove SYNC_WAIT and SYNC_TRYLOCK 2020-07-14 08:47:33 -07:00
xfs_icreate_item.c xfs: Remove kmem_zone_zalloc() usage 2020-07-28 20:24:14 -07:00
xfs_icreate_item.h
…
xfs_inode.c xfs: spilt xfs_dialloc() into 2 functions 2020-12-12 10:48:25 -08:00
xfs_inode.h xfs: move on-disk inode allocation out of xfs_ialloc() 2020-12-12 10:48:24 -08:00
xfs_inode_item.c xfs: widen ondisk inode timestamps to deal with y2038+ 2020-09-15 20:52:41 -07:00
xfs_inode_item.h xfs: move the buffer retry logic to xfs_buf.c 2020-09-15 20:52:38 -07:00
xfs_inode_item_recover.c xfs: widen ondisk inode timestamps to deal with y2038+ 2020-09-15 20:52:41 -07:00
xfs_ioctl.c inode: make init and permission helpers idmapped mount aware 2021-01-24 14:27:16 +01:00
xfs_ioctl.h xfs: embedded the attrlist cursor into struct xfs_attr_list_context 2020-03-02 20:55:55 -08:00
xfs_ioctl32.c xfs: lift cursor copy in/out into xfs_ioc_attr_list 2020-03-02 20:55:54 -08:00
xfs_ioctl32.h xfs: rename compat_time_t to old_time32_t 2020-01-06 08:57:36 -08:00
xfs_iomap.c xfs: don't allow NOWAIT DIO across extent boundaries 2020-11-19 08:59:11 -08:00
xfs_iomap.h
…
xfs_iops.c attr: handle idmapped mounts 2021-01-24 14:27:16 +01:00
xfs_iops.h xfs: open code updating i_mode in xfs_set_acl 2020-12-12 10:49:38 -08:00
xfs_itable.c xfs: move the fork format fields into struct xfs_ifork 2020-05-19 09:40:58 -07:00
xfs_itable.h
…
xfs_iwalk.c xfs: fix the forward progress assertion in xfs_iwalk_run_callbacks 2020-12-09 09:49:38 -08:00
xfs_iwalk.h
…
xfs_linux.h xfs: fix fallocate functions when rtextsize is larger than 1 2020-10-21 09:05:19 -07:00
xfs_log.c xfs: expose the log push threshold 2020-10-07 08:40:29 -07:00
xfs_log.h xfs: expose the log push threshold 2020-10-07 08:40:29 -07:00
xfs_log_cil.c xfs: delete duplicated words + other fixes 2020-08-05 08:49:58 -07:00
xfs_log_priv.h xfs: Modify xlog_ticket_alloc() to use kernel's MM API 2020-07-28 20:24:14 -07:00
xfs_log_recover.c xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
xfs_message.c xfs: refactor ratelimited buffer error messages into helper 2020-05-07 08:27:46 -07:00
xfs_message.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
xfs_mount.c xfs: return corresponding errcode if xfs_initialize_perag() fail 2020-11-18 09:23:51 -08:00
xfs_mount.h xfs: remove xfs_getsb 2020-09-15 20:52:39 -07:00
xfs_mru_cache.c
…
xfs_mru_cache.h
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xfs_ondisk.h xfs: Remove typedef xfs_attr_shortform_t 2020-09-15 20:52:42 -07:00
xfs_pnfs.c xfs: fix a missing unlock on error in xfs_fs_map_blocks 2020-11-11 08:07:37 -08:00
xfs_pnfs.h
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xfs_pwork.c block: remove the bd_queue field from struct block_device 2020-07-01 08:08:20 -06:00
xfs_pwork.h
…
xfs_qm.c xfs: move on-disk inode allocation out of xfs_ialloc() 2020-12-12 10:48:24 -08:00
xfs_qm.h xfs: refactor quota expiration timer modification 2020-09-15 20:52:40 -07:00
xfs_qm_bhv.c xfs: rename XFS_DQ_{USER,GROUP,PROJ} to XFS_DQTYPE_* 2020-07-28 20:24:14 -07:00
xfs_qm_syscalls.c xfs: refactor default quota grace period setting code 2020-09-15 20:52:40 -07:00
xfs_quota.h xfs: move the buffer retry logic to xfs_buf.c 2020-09-15 20:52:38 -07:00
xfs_quotaops.c xfs: create xfs_dqtype_t to represent quota types 2020-07-28 20:24:14 -07:00
xfs_refcount_item.c xfs: refactor data device extent validation 2020-12-09 09:49:38 -08:00
xfs_refcount_item.h xfs: refactor intent item RECOVERED flag into the log item 2020-05-08 08:50:01 -07:00
xfs_reflink.c xfs: only flush the unshared range in xfs_reflink_unshare 2020-11-04 17:41:56 -08:00
xfs_reflink.h xfs: move helpers that lock and unlock two inodes against userspace IO 2020-07-06 10:46:57 -07:00
xfs_rmap_item.c xfs: refactor file range validation 2020-12-09 09:49:38 -08:00
xfs_rmap_item.h xfs: refactor intent item RECOVERED flag into the log item 2020-05-08 08:50:01 -07:00
xfs_rtalloc.c xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
xfs_rtalloc.h xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
xfs_stats.c xfs: periodically relog deferred intent items 2020-10-07 08:40:28 -07:00
xfs_stats.h xfs: periodically relog deferred intent items 2020-10-07 08:40:28 -07:00
xfs_super.c xfs: show the proper user quota options 2020-12-09 09:49:38 -08:00
xfs_super.h
…
xfs_symlink.c xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
xfs_symlink.h xfs: Correct comment tyops -> typos 2019-11-10 10:21:57 -08:00
xfs_sysctl.c xfs: remove deprecated sysctl options 2020-09-25 11:34:08 -07:00
xfs_sysctl.h
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xfs_sysfs.c
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xfs_sysfs.h xfs: Fix UBSAN null-ptr-deref in xfs_sysfs_init 2020-08-07 11:50:17 -07:00
xfs_trace.c xfs: support bulk loading of staged btrees 2020-03-18 08:12:23 -07:00
xfs_trace.h xfs: trace log intent item recovery failures 2020-12-09 09:49:38 -08:00
xfs_trans.c xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
xfs_trans.h xfs: periodically relog deferred intent items 2020-10-07 08:40:28 -07:00
xfs_trans_ail.c xfs: delete duplicated words + other fixes 2020-08-05 08:49:58 -07:00
xfs_trans_buf.c xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
xfs_trans_dquot.c xfs: directly return if the delta equal to zero 2020-12-09 09:49:38 -08:00
xfs_trans_priv.h xfs: refactor adding recovered intent items to the log 2020-05-08 08:50:00 -07:00
xfs_xattr.c xfs: remove duplicate headers 2020-05-08 08:51:34 -07:00