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f7664b3197
linux/fs/xfs/libxfs
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Eric Sandeen f7664b3197 xfs: implement online get/set fs label 
The GET ioctl is trivial, just return the current label.

The SET ioctl is more involved:
It transactionally modifies the superblock to write a new filesystem
label to the primary super.

A new variant of xfs_sync_sb then writes the superblock buffer
immediately to disk so that the change is visible from userspace.

It then invalidates any page cache that userspace might have previously
read on the block device so that i.e. blkid can see the change
immediately, and updates all secondary superblocks as userspace relable
does.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
[darrick: use dchinner's new xfs_update_secondary_sbs function]
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2018-05-16 08:50:16 -07:00
..
xfs_ag_resv.c xfs: account only rmapbt-used blocks against rmapbt perag res 2018-03-11 20:27:57 -07:00
xfs_ag_resv.h xfs: account only rmapbt-used blocks against rmapbt perag res 2018-03-11 20:27:57 -07:00
xfs_ag.c xfs: factor the ag length extension code into libxfs 2018-05-15 18:12:51 -07:00
xfs_ag.h xfs: factor the ag length extension code into libxfs 2018-05-15 18:12:51 -07:00
xfs_alloc_btree.c xfs: add helpers to calculate btree size 2018-05-15 17:57:05 -07:00
xfs_alloc_btree.h xfs: add helpers to calculate btree size 2018-05-15 17:57:05 -07:00
xfs_alloc.c xfs: hoist xfs_scrub_agfl_walk to libxfs as xfs_agfl_walk 2018-05-15 18:12:50 -07:00
xfs_alloc.h xfs: hoist xfs_scrub_agfl_walk to libxfs as xfs_agfl_walk 2018-05-15 18:12:50 -07:00
xfs_attr_leaf.c Split buffer's b_fspriv field 2018-01-29 07:27:22 -08:00
xfs_attr_leaf.h xfs: create structure verifier function for shortform xattrs 2018-01-08 10:54:46 -08:00
xfs_attr_remote.c xfs: make xfs_buf_incore out of line 2018-05-09 10:04:00 -07:00
xfs_attr_remote.h
xfs_attr_sf.h xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_attr.c xfs: remove unnecessary xfs_qm_dqattach parameter 2018-05-10 08:56:47 -07:00
xfs_bit.c libxfs: Optimize the loop for xfs_bitmap_empty 2016-01-04 16:10:19 +11:00
xfs_bit.h xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_bmap_btree.c xfs: add helpers to calculate btree size 2018-05-15 17:57:05 -07:00
xfs_bmap_btree.h xfs: add helpers to calculate btree size 2018-05-15 17:57:05 -07:00
xfs_bmap.c xfs: teach xfs_bmapi_remap to accept some bmapi flags 2018-05-15 18:12:50 -07:00
xfs_bmap.h xfs: make xfs_bmapi_remapi work with attribute forks 2018-05-15 18:12:50 -07:00
xfs_btree.c xfs: add repair helpers for the reference count btree 2018-05-15 17:57:05 -07:00
xfs_btree.h xfs: add repair helpers for the reference count btree 2018-05-15 17:57:05 -07:00
xfs_cksum.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfs_da_btree.c Split buffer's b_fspriv field 2018-01-29 07:27:22 -08:00
xfs_da_btree.h xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_da_format.c xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_da_format.h xfs: refactor the geometry structure filling function 2018-01-08 10:54:48 -08:00
xfs_defer.c xfs: adder caller IP to xfs_defer* tracepoints 2018-05-10 08:56:46 -07:00
xfs_defer.h xfs: defer agfl block frees when dfops is available 2018-05-09 10:04:02 -07:00
xfs_dir2_block.c xfs: sanity-check the unused space before trying to use it 2018-03-23 18:05:07 -07:00
xfs_dir2_data.c xfs: sanity-check the unused space before trying to use it 2018-03-23 18:05:07 -07:00
xfs_dir2_leaf.c xfs: sanity-check the unused space before trying to use it 2018-03-23 18:05:07 -07:00
xfs_dir2_node.c xfs: sanity-check the unused space before trying to use it 2018-03-23 18:05:07 -07:00
xfs_dir2_priv.h xfs: refactor short form directory structure verifier function 2018-01-08 10:54:46 -08:00
xfs_dir2_sf.c xfs: directory scrubber must walk through data block to offset 2018-01-17 21:00:46 -08:00
xfs_dir2.c xfs: refactor the geometry structure filling function 2018-01-08 10:54:48 -08:00
xfs_dir2.h xfs: sanity-check the unused space before trying to use it 2018-03-23 18:05:07 -07:00
xfs_dquot_buf.c xfs: print specific dqblk that failed verifiers 2018-05-09 10:04:01 -07:00
xfs_errortag.h xfs: implement the metadata repair ioctl flag 2018-05-15 18:12:50 -07:00
xfs_format.h xfs: implement online get/set fs label 2018-05-16 08:50:16 -07:00
xfs_fs.h xfs: implement the metadata repair ioctl flag 2018-05-15 18:12:50 -07:00
xfs_ialloc_btree.c xfs: add helpers to calculate btree size 2018-05-15 17:57:05 -07:00
xfs_ialloc_btree.h xfs: add helpers to calculate btree size 2018-05-15 17:57:05 -07:00
xfs_ialloc.c xfs: expose various functions to repair code 2018-05-15 17:57:05 -07:00
xfs_ialloc.h xfs: expose various functions to repair code 2018-05-15 17:57:05 -07:00
xfs_iext_tree.c xfs: move xfs_iext_insert tracepoint to report useful information 2017-12-14 09:20:11 -08:00
xfs_inode_buf.c xfs: enhance dinode verifier 2018-04-17 17:10:17 -07:00
xfs_inode_buf.h xfs: move inode extent size hint validation to libxfs 2018-03-23 18:05:08 -07:00
xfs_inode_fork.c xfs: refactor inode verifier error logging 2018-03-23 18:05:07 -07:00
xfs_inode_fork.h xfs: provide a centralized method for verifying inline fork data 2018-01-08 10:54:47 -08:00
xfs_log_format.h xfs: fix type usage 2017-11-16 12:06:45 -08:00
xfs_log_recover.h xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_log_rlimit.c xfs: trace log reservations at mount time 2018-01-08 10:54:47 -08:00
xfs_quota_defs.h xfs: replace XFS_QMOPT_DQALLOC with a simple boolean 2018-05-10 08:56:48 -07:00
xfs_refcount_btree.c xfs: non-scrub - remove unused function parameters 2018-04-09 10:23:42 -07:00
xfs_refcount_btree.h xfs: non-scrub - remove unused function parameters 2018-04-09 10:23:42 -07:00
xfs_refcount.c xfs: add repair helpers for the reference count btree 2018-05-15 17:57:05 -07:00
xfs_refcount.h xfs: add repair helpers for the reference count btree 2018-05-15 17:57:05 -07:00
xfs_rmap_btree.c xfs: non-scrub - remove unused function parameters 2018-04-09 10:23:42 -07:00
xfs_rmap_btree.h xfs: non-scrub - remove unused function parameters 2018-04-09 10:23:42 -07:00
xfs_rmap.c xfs: add repair helpers for the reverse mapping btree 2018-05-15 17:57:05 -07:00
xfs_rmap.h xfs: add repair helpers for the reverse mapping btree 2018-05-15 17:57:05 -07:00
xfs_rtbitmap.c xfs: cross-reference the realtime bitmap 2018-01-17 21:00:46 -08:00
xfs_sb.c xfs: implement online get/set fs label 2018-05-16 08:50:16 -07:00
xfs_sb.h xfs: implement online get/set fs label 2018-05-16 08:50:16 -07:00
xfs_shared.h xfs: superblock scrub should use short-lived buffers 2018-05-15 17:57:05 -07:00
xfs_symlink_remote.c Split buffer's b_fspriv field 2018-01-29 07:27:22 -08:00
xfs_trans_resv.c xfs: non-scrub - remove unused function parameters 2018-04-09 10:23:42 -07:00
xfs_trans_resv.h xfs: increase log reservations for reflink 2016-10-05 16:26:29 -07:00
xfs_trans_space.h xfs: reserve enough blocks to handle btree splits when remapping 2017-05-03 13:21:40 -07:00
xfs_types.h xfs: move xfs_bmbt_irec and xfs_exntst_t to xfs_types.h 2017-11-06 11:53:41 -08:00