diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-10-28 08:41:45 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-10-29 09:50:13 -0700 |
| commit | 2fcddee8cd8fcce4cc5589a0344f40a28a6dd26f (patch) | |
| tree | 59eb7224fd11149dc822bb659f48095dda2361df /fs/xfs/xfs_mount.c | |
| parent | 5da8a07c79e8a1c151737254117df57627ae93fa (diff) | |
| download | linux-2fcddee8cd8fcce4cc5589a0344f40a28a6dd26f.tar.bz2 | |
xfs: simplify parsing of allocsize mount option
Rework xfs_parseargs to fill out the default value and then parse the
option directly into the mount structure, similar to what we do for
other updates, and open code the now trivial updates based on on the
on-disk superblock directly into xfs_mountfs.
Note that this change rejects the allocsize=0 mount option that has been
documented as invalid for a long time instead of just ignoring it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_mount.c')
| -rw-r--r-- | fs/xfs/xfs_mount.c | 31 |
1 files changed, 5 insertions, 26 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 1853797ea938..3e8eedf01eb2 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -426,30 +426,6 @@ xfs_update_alignment(xfs_mount_t *mp) } /* - * Set the default minimum read and write sizes unless - * already specified in a mount option. - * We use smaller I/O sizes when the file system - * is being used for NFS service (wsync mount option). - */ -STATIC void -xfs_set_rw_sizes(xfs_mount_t *mp) -{ - xfs_sb_t *sbp = &(mp->m_sb); - int readio_log, writeio_log; - - if (!(mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)) - writeio_log = XFS_WRITEIO_LOG_LARGE; - else - writeio_log = mp->m_allocsize_log; - - if (sbp->sb_blocklog > writeio_log) - mp->m_allocsize_log = sbp->sb_blocklog; - } else - mp->m_allocsize_log = writeio_log; - mp->m_allocsize_blocks = 1 << (mp->m_allocsize_log - sbp->sb_blocklog); -} - -/* * precalculate the low space thresholds for dynamic speculative preallocation. */ void @@ -713,9 +689,12 @@ xfs_mountfs( goto out_remove_errortag; /* - * Set the minimum read and write sizes + * Update the preferred write size based on the information from the + * on-disk superblock. */ - xfs_set_rw_sizes(mp); + mp->m_allocsize_log = + max_t(uint32_t, sbp->sb_blocklog, mp->m_allocsize_log); + mp->m_allocsize_blocks = 1U << (mp->m_allocsize_log - sbp->sb_blocklog); /* set the low space thresholds for dynamic preallocation */ xfs_set_low_space_thresholds(mp); |