lwn.git/fs/xfs/xfs_utils.c, branch v6.9-rc5

xfs: consolidate xfs_utils.c

2013-08-12T21:55:17+00:00

There are a few small helper functions in xfs_util, all related to xfs_inode modifications. Move them all to xfs_inode.c so all xfs_inode operations are consiolidated in the one place. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers

xfs: reshuffle dir2 definitions around for userspace

2013-08-12T21:40:57+00:00

Many of the definitions within xfs_dir2_priv.h are needed in userspace outside libxfs. Definitions within xfs_dir2_priv.h are wholly contained within libxfs, so we need to shuffle some of the definitions around to keep consistency across files shared between user and kernel space. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers

xfs: separate dquot on disk format definitions out of xfs_quota.h

2013-08-12T21:09:52+00:00

The on disk format definitions of the on-disk dquot, log formats and quota off log formats are all intertwined with other definitions for quotas. Separate them out into their own header file so they can easily be shared with userspace. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers

xfs: remove the alloc_done argument to xfs_dialloc

2012-07-29T21:00:31+00:00

We can simplify check the IO_agbp pointer for being non-NULL instead of passing another argument through two layers of function calls. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers

xfs: clean up xfs_bit.h includes

2012-05-14T21:21:00+00:00

With the removal of xfs_rw.h and other changes over time, xfs_bit.h is being included in many files that don't actually need it. Clean up the includes as necessary. Also move the only-used-once xfs_ialloc_find_free() static inline function out of a header file that is widely included to reduce the number of needless dependencies on xfs_bit.h. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers

xfs: move xfsagino_t to xfs_types.h

2012-05-14T21:20:54+00:00

Untangle the header file includes a bit by moving the definition of xfs_agino_t to xfs_types.h. This removes the dependency that xfs_ag.h has on xfs_inum.h, meaning we don't need to include xfs_inum.h everywhere we include xfs_ag.h. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers

vfs: check i_nlink limits in vfs_{mkdir,rename_dir,link}

2012-03-21T01:29:32+00:00

New field of struct super_block - ->s_max_links. Maximal allowed value of ->i_nlink or 0; in the latter case all checks still need to be done in ->link/->mkdir/->rename instances. Note that this limit applies both to directoris and to non-directories. Signed-off-by: Al Viro

xfs: propagate umode_t

2012-01-04T03:55:00+00:00

Signed-off-by: Al Viro

xfs: remove xfs_cred.h

2010-10-18T20:08:06+00:00

We're not actually passing around credentials inside XFS for a while now, so remove all xfs_cred.h with it's cred_t typedef and all instances of it. Signed-off-by: Christoph Hellwig Signed-off-by: Alex Elder

xfs: don't use vfs writeback for pure metadata modifications

2010-10-18T20:07:45+00:00

Under heavy multi-way parallel create workloads, the VFS struggles to write back all the inodes that have been changed in age order. The bdi flusher thread becomes CPU bound, spending 85% of it's time in the VFS code, mostly traversing the superblock dirty inode list to separate dirty inodes old enough to flush. We already keep an index of all metadata changes in age order - in the AIL - and continued log pressure will do age ordered writeback without any extra overhead at all. If there is no pressure on the log, the xfssyncd will periodically write back metadata in ascending disk address offset order so will be very efficient. Hence we can stop marking VFS inodes dirty during transaction commit or when changing timestamps during transactions. This will keep the inodes in the superblock dirty list to those containing data or unlogged metadata changes. However, the timstamp changes are slightly more complex than this - there are a couple of places that do unlogged updates of the timestamps, and the VFS need to be informed of these. Hence add a new function xfs_trans_ichgtime() for transactional changes, and leave xfs_ichgtime() for the non-transactional changes. Signed-off-by: Dave Chinner Reviewed-by: Alex Elder Reviewed-by: Christoph Hellwig