On Thu, Jan 14, 2016 at 05:09:25PM +1100, Dave Chinner wrote: > From: Dave Chinner <dchinner@xxxxxxxxxx> > > Move the di_mode value from the xfs_icdinode to the VFS inode, reducing > the xfs_icdinode byte another 2 bytes and collapsing another 2 byte hole > in the structure. > > Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx> > --- > fs/fs-writeback.c | 1 + > fs/xfs/libxfs/xfs_bmap.c | 6 +++--- > fs/xfs/libxfs/xfs_dir2.c | 12 +++++------ > fs/xfs/libxfs/xfs_inode_buf.c | 8 +++---- > fs/xfs/libxfs/xfs_inode_buf.h | 1 - > fs/xfs/libxfs/xfs_inode_fork.c | 2 +- > fs/xfs/xfs_bmap_util.c | 4 ++-- > fs/xfs/xfs_dir2_readdir.c | 2 +- > fs/xfs/xfs_file.c | 6 +++--- > fs/xfs/xfs_filestream.c | 4 ++-- > fs/xfs/xfs_icache.c | 42 +++++++++++++++++++++++++++++++----- > fs/xfs/xfs_inode.c | 48 ++++++++++++++++++++---------------------- > fs/xfs/xfs_inode.h | 4 ++-- > fs/xfs/xfs_inode_item.c | 2 +- > fs/xfs/xfs_ioctl.c | 14 ++++++------ > fs/xfs/xfs_iops.c | 12 ++++------- > fs/xfs/xfs_itable.c | 2 +- > fs/xfs/xfs_log_recover.c | 2 +- > fs/xfs/xfs_mount.c | 2 +- > 19 files changed, 100 insertions(+), 74 deletions(-) > > diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c > index 023f6a1..0858457 100644 > --- a/fs/fs-writeback.c > +++ b/fs/fs-writeback.c > @@ -2106,6 +2106,7 @@ EXPORT_SYMBOL(__mark_inode_dirty); > * completed by the time we have gained the lock and waited for all IO that is > * in progress regardless of the order callers are granted the lock. > */ > +#include "linux/delay.h" > static void wait_sb_inodes(struct super_block *sb) > { > struct inode *inode, *old_inode = NULL; What's this hunk about? ... > diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c > index 7c26f86..c1edb0f 100644 > --- a/fs/xfs/xfs_icache.c > +++ b/fs/xfs/xfs_icache.c ... > @@ -135,6 +138,35 @@ xfs_inode_free( > } > > /* > + * When we recycle a reclaimable inode, we need to re-initialise the VFS inode > + * part of the structure. This is made more complex by the fact we store > + * information about the on-disk values in the VFS inode and so we can't just > + * overwrite it's values unconditionally. Hence we save the parameters we Nit: its > + * need to retain across reinitialisation, and rewrite them into the VFS inode > + * after resetting it's state even if resetting fails. ... and above as well. That aside, it looks like xfs_reinit_inode() addresses my previous questions around reclaimable inodes. Could we introduce this function properly when it is first needed (the nlink patch) and update it appropriately? Brian > + */ > +static int > +xfs_reinit_inode( > + struct xfs_mount *mp, > + struct inode *inode) > +{ > + uint32_t nlink = inode->i_nlink; > + umode_t mode = inode->i_mode; > + uint32_t generation = inode->i_generation; > + uint64_t version = inode->i_version; > + int error; > + > + error = inode_init_always(mp->m_super, inode); > + > + set_nlink(inode, nlink); > + inode->i_mode = mode; > + inode->i_generation = generation; > + inode->i_version = version; > + > + return error; > +} > + > +/* > * Check the validity of the inode we just found it the cache > */ > static int > @@ -185,7 +217,7 @@ xfs_iget_cache_hit( > /* > * If lookup is racing with unlink return an error immediately. > */ > - if (ip->i_d.di_mode == 0 && !(flags & XFS_IGET_CREATE)) { > + if (VFS_I(ip)->i_mode == 0 && !(flags & XFS_IGET_CREATE)) { > error = -ENOENT; > goto out_error; > } > @@ -208,7 +240,7 @@ xfs_iget_cache_hit( > spin_unlock(&ip->i_flags_lock); > rcu_read_unlock(); > > - error = inode_init_always(mp->m_super, inode); > + error = xfs_reinit_inode(mp, inode); > if (error) { > /* > * Re-initializing the inode failed, and we are in deep > @@ -295,7 +327,7 @@ xfs_iget_cache_miss( > > trace_xfs_iget_miss(ip); > > - if ((ip->i_d.di_mode == 0) && !(flags & XFS_IGET_CREATE)) { > + if ((VFS_I(ip)->i_mode == 0) && !(flags & XFS_IGET_CREATE)) { > error = -ENOENT; > goto out_destroy; > } > @@ -444,7 +476,7 @@ again: > * If we have a real type for an on-disk inode, we can setup the inode > * now. If it's a new inode being created, xfs_ialloc will handle it. > */ > - if (xfs_iflags_test(ip, XFS_INEW) && ip->i_d.di_mode != 0) > + if (xfs_iflags_test(ip, XFS_INEW) && VFS_I(ip)->i_mode != 0) > xfs_setup_existing_inode(ip); > return 0; > > diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c > index 96aee23..a0e7cdf 100644 > --- a/fs/xfs/xfs_inode.c > +++ b/fs/xfs/xfs_inode.c > @@ -793,7 +793,7 @@ xfs_ialloc( > if (ip->i_d.di_version == 1) > ip->i_d.di_version = 2; > > - ip->i_d.di_mode = mode; > + inode->i_mode = mode; > set_nlink(inode, nlink); > ip->i_d.di_uid = xfs_kuid_to_uid(current_fsuid()); > ip->i_d.di_gid = xfs_kgid_to_gid(current_fsgid()); > @@ -801,9 +801,8 @@ xfs_ialloc( > > if (pip && XFS_INHERIT_GID(pip)) { > ip->i_d.di_gid = pip->i_d.di_gid; > - if ((pip->i_d.di_mode & S_ISGID) && S_ISDIR(mode)) { > - ip->i_d.di_mode |= S_ISGID; > - } > + if ((VFS_I(pip)->i_mode & S_ISGID) && S_ISDIR(mode)) > + inode->i_mode |= S_ISGID; > } > > /* > @@ -812,10 +811,9 @@ xfs_ialloc( > * (and only if the irix_sgid_inherit compatibility variable is set). > */ > if ((irix_sgid_inherit) && > - (ip->i_d.di_mode & S_ISGID) && > - (!in_group_p(xfs_gid_to_kgid(ip->i_d.di_gid)))) { > - ip->i_d.di_mode &= ~S_ISGID; > - } > + (inode->i_mode & S_ISGID) && > + (!in_group_p(xfs_gid_to_kgid(ip->i_d.di_gid)))) > + inode->i_mode &= ~S_ISGID; > > ip->i_d.di_size = 0; > ip->i_d.di_nextents = 0; > @@ -1407,7 +1405,7 @@ xfs_link( > > trace_xfs_link(tdp, target_name); > > - ASSERT(!S_ISDIR(sip->i_d.di_mode)); > + ASSERT(!S_ISDIR(VFS_I(sip)->i_mode)); > > if (XFS_FORCED_SHUTDOWN(mp)) > return -EIO; > @@ -1614,7 +1612,7 @@ xfs_release( > xfs_mount_t *mp = ip->i_mount; > int error; > > - if (!S_ISREG(ip->i_d.di_mode) || (ip->i_d.di_mode == 0)) > + if (!S_ISREG(VFS_I(ip)->i_mode) || (VFS_I(ip)->i_mode == 0)) > return 0; > > /* If this is a read-only mount, don't do this (would generate I/O) */ > @@ -1849,7 +1847,7 @@ xfs_inactive( > * If the inode is already free, then there can be nothing > * to clean up here. > */ > - if (ip->i_d.di_mode == 0) { > + if (VFS_I(ip)->i_mode == 0) { > ASSERT(ip->i_df.if_real_bytes == 0); > ASSERT(ip->i_df.if_broot_bytes == 0); > return; > @@ -1873,7 +1871,7 @@ xfs_inactive( > return; > } > > - if (S_ISREG(ip->i_d.di_mode) && > + if (S_ISREG(VFS_I(ip)->i_mode) && > (ip->i_d.di_size != 0 || XFS_ISIZE(ip) != 0 || > ip->i_d.di_nextents > 0 || ip->i_delayed_blks > 0)) > truncate = 1; > @@ -1882,7 +1880,7 @@ xfs_inactive( > if (error) > return; > > - if (S_ISLNK(ip->i_d.di_mode)) > + if (S_ISLNK(VFS_I(ip)->i_mode)) > error = xfs_inactive_symlink(ip); > else if (truncate) > error = xfs_inactive_truncate(ip); > @@ -1944,7 +1942,7 @@ xfs_iunlink( > int error; > > ASSERT(VFS_I(ip)->i_nlink == 0 || ignore_linkcount); > - ASSERT(ip->i_d.di_mode != 0); > + ASSERT(VFS_I(ip)->i_mode != 0); > > mp = tp->t_mountp; > > @@ -2387,7 +2385,7 @@ xfs_ifree( > ASSERT(VFS_I(ip)->i_nlink == 0); > ASSERT(ip->i_d.di_nextents == 0); > ASSERT(ip->i_d.di_anextents == 0); > - ASSERT(ip->i_d.di_size == 0 || !S_ISREG(ip->i_d.di_mode)); > + ASSERT(ip->i_d.di_size == 0 || !S_ISREG(VFS_I(ip)->i_mode)); > ASSERT(ip->i_d.di_nblocks == 0); > > /* > @@ -2401,7 +2399,7 @@ xfs_ifree( > if (error) > return error; > > - ip->i_d.di_mode = 0; /* mark incore inode as free */ > + VFS_I(ip)->i_mode = 0; /* mark incore inode as free */ > ip->i_d.di_flags = 0; > ip->i_d.di_dmevmask = 0; > ip->i_d.di_forkoff = 0; /* mark the attr fork not in use */ > @@ -2498,7 +2496,7 @@ xfs_remove( > { > xfs_mount_t *mp = dp->i_mount; > xfs_trans_t *tp = NULL; > - int is_dir = S_ISDIR(ip->i_d.di_mode); > + int is_dir = S_ISDIR(VFS_I(ip)->i_mode); > int error = 0; > xfs_bmap_free_t free_list; > xfs_fsblock_t first_block; > @@ -2743,7 +2741,7 @@ xfs_cross_rename( > if (dp1 != dp2) { > dp2_flags = XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG; > > - if (S_ISDIR(ip2->i_d.di_mode)) { > + if (S_ISDIR(VFS_I(ip2)->i_mode)) { > error = xfs_dir_replace(tp, ip2, &xfs_name_dotdot, > dp1->i_ino, first_block, > free_list, spaceres); > @@ -2751,7 +2749,7 @@ xfs_cross_rename( > goto out_trans_abort; > > /* transfer ip2 ".." reference to dp1 */ > - if (!S_ISDIR(ip1->i_d.di_mode)) { > + if (!S_ISDIR(VFS_I(ip1)->i_mode)) { > error = xfs_droplink(tp, dp2); > if (error) > goto out_trans_abort; > @@ -2770,7 +2768,7 @@ xfs_cross_rename( > ip2_flags |= XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG; > } > > - if (S_ISDIR(ip1->i_d.di_mode)) { > + if (S_ISDIR(VFS_I(ip1)->i_mode)) { > error = xfs_dir_replace(tp, ip1, &xfs_name_dotdot, > dp2->i_ino, first_block, > free_list, spaceres); > @@ -2778,7 +2776,7 @@ xfs_cross_rename( > goto out_trans_abort; > > /* transfer ip1 ".." reference to dp2 */ > - if (!S_ISDIR(ip2->i_d.di_mode)) { > + if (!S_ISDIR(VFS_I(ip2)->i_mode)) { > error = xfs_droplink(tp, dp1); > if (error) > goto out_trans_abort; > @@ -2875,7 +2873,7 @@ xfs_rename( > struct xfs_inode *inodes[__XFS_SORT_INODES]; > int num_inodes = __XFS_SORT_INODES; > bool new_parent = (src_dp != target_dp); > - bool src_is_directory = S_ISDIR(src_ip->i_d.di_mode); > + bool src_is_directory = S_ISDIR(VFS_I(src_ip)->i_mode); > int spaceres; > int error; > > @@ -3004,7 +3002,7 @@ xfs_rename( > * target and source are directories and that target can be > * destroyed, or that neither is a directory. > */ > - if (S_ISDIR(target_ip->i_d.di_mode)) { > + if (S_ISDIR(VFS_I(target_ip)->i_mode)) { > /* > * Make sure target dir is empty. > */ > @@ -3434,7 +3432,7 @@ xfs_iflush_int( > __func__, ip->i_ino, be16_to_cpu(dip->di_magic), dip); > goto corrupt_out; > } > - if (S_ISREG(ip->i_d.di_mode)) { > + if (S_ISREG(VFS_I(ip)->i_mode)) { > if (XFS_TEST_ERROR( > (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS) && > (ip->i_d.di_format != XFS_DINODE_FMT_BTREE), > @@ -3444,7 +3442,7 @@ xfs_iflush_int( > __func__, ip->i_ino, ip); > goto corrupt_out; > } > - } else if (S_ISDIR(ip->i_d.di_mode)) { > + } else if (S_ISDIR(VFS_I(ip)->i_mode)) { > if (XFS_TEST_ERROR( > (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS) && > (ip->i_d.di_format != XFS_DINODE_FMT_BTREE) && > diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h > index e74d13d..d627749 100644 > --- a/fs/xfs/xfs_inode.h > +++ b/fs/xfs/xfs_inode.h > @@ -88,7 +88,7 @@ static inline struct inode *VFS_I(struct xfs_inode *ip) > */ > static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip) > { > - if (S_ISREG(ip->i_d.di_mode)) > + if (S_ISREG(VFS_I(ip)->i_mode)) > return i_size_read(VFS_I(ip)); > return ip->i_d.di_size; > } > @@ -369,7 +369,7 @@ static inline int xfs_isiflocked(struct xfs_inode *ip) > */ > #define XFS_INHERIT_GID(pip) \ > (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \ > - ((pip)->i_d.di_mode & S_ISGID)) > + (VFS_I(pip)->i_mode & S_ISGID)) > > int xfs_release(struct xfs_inode *ip); > void xfs_inactive(struct xfs_inode *ip); > diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c > index 334d657..bd9808f 100644 > --- a/fs/xfs/xfs_inode_item.c > +++ b/fs/xfs/xfs_inode_item.c > @@ -333,7 +333,6 @@ xfs_inode_to_log_dinode( > > to->di_magic = XFS_DINODE_MAGIC; > > - to->di_mode = from->di_mode; > to->di_version = from->di_version; > to->di_format = from->di_format; > to->di_uid = from->di_uid; > @@ -351,6 +350,7 @@ xfs_inode_to_log_dinode( > to->di_ctime.t_nsec = inode->i_ctime.tv_nsec; > to->di_nlink = inode->i_nlink; > to->di_gen = inode->i_generation; > + to->di_mode = inode->i_mode; > > to->di_size = from->di_size; > to->di_nblocks = from->di_nblocks; > diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c > index 2c40c5f..5069bd8 100644 > --- a/fs/xfs/xfs_ioctl.c > +++ b/fs/xfs/xfs_ioctl.c > @@ -962,7 +962,7 @@ xfs_set_diflags( > di_flags |= XFS_DIFLAG_NODEFRAG; > if (xflags & XFS_XFLAG_FILESTREAM) > di_flags |= XFS_DIFLAG_FILESTREAM; > - if (S_ISDIR(ip->i_d.di_mode)) { > + if (S_ISDIR(VFS_I(ip)->i_mode)) { > if (xflags & XFS_XFLAG_RTINHERIT) > di_flags |= XFS_DIFLAG_RTINHERIT; > if (xflags & XFS_XFLAG_NOSYMLINKS) > @@ -971,7 +971,7 @@ xfs_set_diflags( > di_flags |= XFS_DIFLAG_EXTSZINHERIT; > if (xflags & XFS_XFLAG_PROJINHERIT) > di_flags |= XFS_DIFLAG_PROJINHERIT; > - } else if (S_ISREG(ip->i_d.di_mode)) { > + } else if (S_ISREG(VFS_I(ip)->i_mode)) { > if (xflags & XFS_XFLAG_REALTIME) > di_flags |= XFS_DIFLAG_REALTIME; > if (xflags & XFS_XFLAG_EXTSIZE) > @@ -1112,14 +1112,14 @@ xfs_ioctl_setattr_check_extsize( > { > struct xfs_mount *mp = ip->i_mount; > > - if ((fa->fsx_xflags & XFS_XFLAG_EXTSIZE) && !S_ISREG(ip->i_d.di_mode)) > + if ((fa->fsx_xflags & XFS_XFLAG_EXTSIZE) && !S_ISREG(VFS_I(ip)->i_mode)) > return -EINVAL; > > if ((fa->fsx_xflags & XFS_XFLAG_EXTSZINHERIT) && > - !S_ISDIR(ip->i_d.di_mode)) > + !S_ISDIR(VFS_I(ip)->i_mode)) > return -EINVAL; > > - if (S_ISREG(ip->i_d.di_mode) && ip->i_d.di_nextents && > + if (S_ISREG(VFS_I(ip)->i_mode) && ip->i_d.di_nextents && > ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != fa->fsx_extsize)) > return -EINVAL; > > @@ -1240,9 +1240,9 @@ xfs_ioctl_setattr( > * successful return from chown() > */ > > - if ((ip->i_d.di_mode & (S_ISUID|S_ISGID)) && > + if ((VFS_I(ip)->i_mode & (S_ISUID|S_ISGID)) && > !capable_wrt_inode_uidgid(VFS_I(ip), CAP_FSETID)) > - ip->i_d.di_mode &= ~(S_ISUID|S_ISGID); > + VFS_I(ip)->i_mode &= ~(S_ISUID|S_ISGID); > > /* Change the ownerships and register project quota modifications */ > if (xfs_get_projid(ip) != fa->fsx_projid) { > diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c > index 397ce85..34bff1e 100644 > --- a/fs/xfs/xfs_iops.c > +++ b/fs/xfs/xfs_iops.c > @@ -454,7 +454,7 @@ xfs_vn_getattr( > > stat->size = XFS_ISIZE(ip); > stat->dev = inode->i_sb->s_dev; > - stat->mode = ip->i_d.di_mode; > + stat->mode = inode->i_mode; > stat->nlink = inode->i_nlink; > stat->uid = inode->i_uid; > stat->gid = inode->i_gid; > @@ -501,9 +501,6 @@ xfs_setattr_mode( > > ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); > > - ip->i_d.di_mode &= S_IFMT; > - ip->i_d.di_mode |= mode & ~S_IFMT; > - > inode->i_mode &= S_IFMT; > inode->i_mode |= mode & ~S_IFMT; > } > @@ -647,9 +644,9 @@ xfs_setattr_nonsize( > * The set-user-ID and set-group-ID bits of a file will be > * cleared upon successful return from chown() > */ > - if ((ip->i_d.di_mode & (S_ISUID|S_ISGID)) && > + if ((inode->i_mode & (S_ISUID|S_ISGID)) && > !capable(CAP_FSETID)) > - ip->i_d.di_mode &= ~(S_ISUID|S_ISGID); > + inode->i_mode &= ~(S_ISUID|S_ISGID); > > /* > * Change the ownerships and register quota modifications > @@ -759,7 +756,7 @@ xfs_setattr_size( > > ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); > ASSERT(xfs_isilocked(ip, XFS_MMAPLOCK_EXCL)); > - ASSERT(S_ISREG(ip->i_d.di_mode)); > + ASSERT(S_ISREG(inode->i_mode)); > ASSERT((iattr->ia_valid & (ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_ATIME_SET| > ATTR_MTIME_SET|ATTR_KILL_PRIV|ATTR_TIMES_SET)) == 0); > > @@ -1211,7 +1208,6 @@ xfs_setup_inode( > /* make the inode look hashed for the writeback code */ > hlist_add_fake(&inode->i_hash); > > - inode->i_mode = ip->i_d.di_mode; > inode->i_uid = xfs_uid_to_kuid(ip->i_d.di_uid); > inode->i_gid = xfs_gid_to_kgid(ip->i_d.di_gid); > > diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c > index 6162e65..ce73eb3 100644 > --- a/fs/xfs/xfs_itable.c > +++ b/fs/xfs/xfs_itable.c > @@ -88,7 +88,6 @@ xfs_bulkstat_one_int( > buf->bs_projid_lo = dic->di_projid_lo; > buf->bs_projid_hi = dic->di_projid_hi; > buf->bs_ino = ino; > - buf->bs_mode = dic->di_mode; > buf->bs_uid = dic->di_uid; > buf->bs_gid = dic->di_gid; > buf->bs_size = dic->di_size; > @@ -101,6 +100,7 @@ xfs_bulkstat_one_int( > buf->bs_ctime.tv_sec = inode->i_ctime.tv_sec; > buf->bs_ctime.tv_nsec = inode->i_ctime.tv_nsec; > buf->bs_gen = inode->i_generation; > + buf->bs_mode = inode->i_mode; > > buf->bs_xflags = xfs_ip2xflags(ip); > buf->bs_extsize = dic->di_extsize << mp->m_sb.sb_blocklog; > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 611c25c..bd6f23b 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -4338,7 +4338,7 @@ xlog_recover_process_one_iunlink( > goto fail_iput; > > ASSERT(VFS_I(ip)->i_nlink == 0); > - ASSERT(ip->i_d.di_mode != 0); > + ASSERT(VFS_I(ip)->i_mode != 0); > > /* setup for the next pass */ > agino = be32_to_cpu(dip->di_next_unlinked); > diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c > index bb753b3..d306105 100644 > --- a/fs/xfs/xfs_mount.c > +++ b/fs/xfs/xfs_mount.c > @@ -865,7 +865,7 @@ xfs_mountfs( > > ASSERT(rip != NULL); > > - if (unlikely(!S_ISDIR(rip->i_d.di_mode))) { > + if (unlikely(!S_ISDIR(VFS_I(rip)->i_mode))) { > xfs_warn(mp, "corrupted root inode %llu: not a directory", > (unsigned long long)rip->i_ino); > xfs_iunlock(rip, XFS_ILOCK_EXCL); > -- > 2.5.0 > > _______________________________________________ > xfs mailing list > xfs@xxxxxxxxxxx > http://oss.sgi.com/mailman/listinfo/xfs _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs