| Message ID | 20240726115956.643538-11-kernel@pankajraghav.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | enable bs > ps in XFS | expand |
On Fri, Jul 26, 2024 at 01:59:56PM +0200, Pankaj Raghav (Samsung) wrote: > From: Pankaj Raghav <p.raghav@samsung.com> > > Page cache now has the ability to have a minimum order when allocating > a folio which is a prerequisite to add support for block size > page > size. > > Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> > Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> > Reviewed-by: Darrick J. Wong <djwong@kernel.org> Looks good. Reviewed-by: Dave Chinner <dchinner@redhat.com>
On Fri, Jul 26, 2024 at 01:59:56PM +0200, Pankaj Raghav (Samsung) wrote: > From: Pankaj Raghav <p.raghav@samsung.com> > > Page cache now has the ability to have a minimum order when allocating > a folio which is a prerequisite to add support for block size > page > size. > > Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> > Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> > Reviewed-by: Darrick J. Wong <djwong@kernel.org> > --- > fs/xfs/libxfs/xfs_ialloc.c | 5 +++++ > fs/xfs/libxfs/xfs_shared.h | 3 +++ > fs/xfs/xfs_icache.c | 6 ++++-- > fs/xfs/xfs_mount.c | 1 - > fs/xfs/xfs_super.c | 28 ++++++++++++++++++++-------- > include/linux/pagemap.h | 13 +++++++++++++ > 6 files changed, 45 insertions(+), 11 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c > index 0af5b7a33d055..1921b689888b8 100644 > --- a/fs/xfs/libxfs/xfs_ialloc.c > +++ b/fs/xfs/libxfs/xfs_ialloc.c > @@ -3033,6 +3033,11 @@ xfs_ialloc_setup_geometry( > igeo->ialloc_align = mp->m_dalign; > else > igeo->ialloc_align = 0; > + > + if (mp->m_sb.sb_blocksize > PAGE_SIZE) > + igeo->min_folio_order = mp->m_sb.sb_blocklog - PAGE_SHIFT; > + else > + igeo->min_folio_order = 0; > } > > /* Compute the location of the root directory inode that is laid out by mkfs. */ > diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h > index 2f7413afbf46c..33b84a3a83ff6 100644 > --- a/fs/xfs/libxfs/xfs_shared.h > +++ b/fs/xfs/libxfs/xfs_shared.h > @@ -224,6 +224,9 @@ struct xfs_ino_geometry { > /* precomputed value for di_flags2 */ > uint64_t new_diflags2; > > + /* minimum folio order of a page cache allocation */ > + unsigned int min_folio_order; > + > }; > > #endif /* __XFS_SHARED_H__ */ > diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c > index cf629302d48e7..0fcf235e50235 100644 > --- a/fs/xfs/xfs_icache.c > +++ b/fs/xfs/xfs_icache.c > @@ -88,7 +88,8 @@ xfs_inode_alloc( > > /* VFS doesn't initialise i_mode! */ > VFS_I(ip)->i_mode = 0; > - mapping_set_large_folios(VFS_I(ip)->i_mapping); > + mapping_set_folio_min_order(VFS_I(ip)->i_mapping, > + M_IGEO(mp)->min_folio_order); > > XFS_STATS_INC(mp, vn_active); > ASSERT(atomic_read(&ip->i_pincount) == 0); > @@ -325,7 +326,8 @@ xfs_reinit_inode( > inode->i_uid = uid; > inode->i_gid = gid; > inode->i_state = state; > - mapping_set_large_folios(inode->i_mapping); > + mapping_set_folio_min_order(inode->i_mapping, > + M_IGEO(mp)->min_folio_order); > return error; > } > > diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c > index 3949f720b5354..c6933440f8066 100644 > --- a/fs/xfs/xfs_mount.c > +++ b/fs/xfs/xfs_mount.c > @@ -134,7 +134,6 @@ xfs_sb_validate_fsb_count( > { > uint64_t max_bytes; > > - ASSERT(PAGE_SHIFT >= sbp->sb_blocklog); > ASSERT(sbp->sb_blocklog >= BBSHIFT); > > if (check_shl_overflow(nblocks, sbp->sb_blocklog, &max_bytes)) > diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c > index 27e9f749c4c7f..b2f5a1706c59d 100644 > --- a/fs/xfs/xfs_super.c > +++ b/fs/xfs/xfs_super.c > @@ -1638,16 +1638,28 @@ xfs_fs_fill_super( > goto out_free_sb; > } > > - /* > - * Until this is fixed only page-sized or smaller data blocks work. > - */ > if (mp->m_sb.sb_blocksize > PAGE_SIZE) { > - xfs_warn(mp, > - "File system with blocksize %d bytes. " > - "Only pagesize (%ld) or less will currently work.", > + size_t max_folio_size = mapping_max_folio_size_supported(); > + > + if (!xfs_has_crc(mp)) { > + xfs_warn(mp, > +"V4 Filesystem with blocksize %d bytes. Only pagesize (%ld) or less is supported.", > mp->m_sb.sb_blocksize, PAGE_SIZE); > - error = -ENOSYS; > - goto out_free_sb; > + error = -ENOSYS; > + goto out_free_sb; > + } > + > + if (mp->m_sb.sb_blocksize > max_folio_size) { > + xfs_warn(mp, > +"block size (%u bytes) not supported; Only block size (%ld) or less is supported", > + mp->m_sb.sb_blocksize, max_folio_size); Dumb nit: Please indent ^^^ this second line so that it doesn't start on the same column as the separate statement below it. --D > + error = -ENOSYS; > + goto out_free_sb; > + } > + > + xfs_warn(mp, > +"EXPERIMENTAL: V5 Filesystem with Large Block Size (%d bytes) enabled.", > + mp->m_sb.sb_blocksize); > } > > /* Ensure this filesystem fits in the page cache limits */ > diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h > index 3a876d6801a90..61a7649d86e57 100644 > --- a/include/linux/pagemap.h > +++ b/include/linux/pagemap.h > @@ -373,6 +373,19 @@ static inline void mapping_set_gfp_mask(struct address_space *m, gfp_t mask) > #define MAX_XAS_ORDER (XA_CHUNK_SHIFT * 2 - 1) > #define MAX_PAGECACHE_ORDER min(MAX_XAS_ORDER, PREFERRED_MAX_PAGECACHE_ORDER) > > +/* > + * mapping_max_folio_size_supported() - Check the max folio size supported > + * > + * The filesystem should call this function at mount time if there is a > + * requirement on the folio mapping size in the page cache. > + */ > +static inline size_t mapping_max_folio_size_supported(void) > +{ > + if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) > + return 1U << (PAGE_SHIFT + MAX_PAGECACHE_ORDER); > + return PAGE_SIZE; > +} > + > /* > * mapping_set_folio_order_range() - Set the orders supported by a file. > * @mapping: The address space of the file. > -- > 2.44.1 > >
On Mon, Jul 29, 2024 at 09:41:59AM -0700, Darrick J. Wong wrote: > On Fri, Jul 26, 2024 at 01:59:56PM +0200, Pankaj Raghav (Samsung) wrote: > > From: Pankaj Raghav <p.raghav@samsung.com> > > > > Page cache now has the ability to have a minimum order when allocating > > a folio which is a prerequisite to add support for block size > page > > size. > > > > Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> > > Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> > > Reviewed-by: Darrick J. Wong <djwong@kernel.org> > > --- > > fs/xfs/libxfs/xfs_ialloc.c | 5 +++++ > > fs/xfs/libxfs/xfs_shared.h | 3 +++ > > fs/xfs/xfs_icache.c | 6 ++++-- > > fs/xfs/xfs_mount.c | 1 - > > fs/xfs/xfs_super.c | 28 ++++++++++++++++++++-------- > > include/linux/pagemap.h | 13 +++++++++++++ > > 6 files changed, 45 insertions(+), 11 deletions(-) > > > > diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c > > index 0af5b7a33d055..1921b689888b8 100644 > > --- a/fs/xfs/libxfs/xfs_ialloc.c > > +++ b/fs/xfs/libxfs/xfs_ialloc.c > > @@ -3033,6 +3033,11 @@ xfs_ialloc_setup_geometry( > > igeo->ialloc_align = mp->m_dalign; > > else > > igeo->ialloc_align = 0; > > + > > + if (mp->m_sb.sb_blocksize > PAGE_SIZE) > > + igeo->min_folio_order = mp->m_sb.sb_blocklog - PAGE_SHIFT; > > + else > > + igeo->min_folio_order = 0; > > } > > > > /* Compute the location of the root directory inode that is laid out by mkfs. */ > > diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h > > index 2f7413afbf46c..33b84a3a83ff6 100644 > > --- a/fs/xfs/libxfs/xfs_shared.h > > +++ b/fs/xfs/libxfs/xfs_shared.h > > @@ -224,6 +224,9 @@ struct xfs_ino_geometry { > > /* precomputed value for di_flags2 */ > > uint64_t new_diflags2; > > > > + /* minimum folio order of a page cache allocation */ > > + unsigned int min_folio_order; > > + > > }; > > > > #endif /* __XFS_SHARED_H__ */ > > diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c > > index cf629302d48e7..0fcf235e50235 100644 > > --- a/fs/xfs/xfs_icache.c > > +++ b/fs/xfs/xfs_icache.c > > @@ -88,7 +88,8 @@ xfs_inode_alloc( > > > > /* VFS doesn't initialise i_mode! */ > > VFS_I(ip)->i_mode = 0; > > - mapping_set_large_folios(VFS_I(ip)->i_mapping); > > + mapping_set_folio_min_order(VFS_I(ip)->i_mapping, > > + M_IGEO(mp)->min_folio_order); > > > > XFS_STATS_INC(mp, vn_active); > > ASSERT(atomic_read(&ip->i_pincount) == 0); > > @@ -325,7 +326,8 @@ xfs_reinit_inode( > > inode->i_uid = uid; > > inode->i_gid = gid; > > inode->i_state = state; > > - mapping_set_large_folios(inode->i_mapping); > > + mapping_set_folio_min_order(inode->i_mapping, > > + M_IGEO(mp)->min_folio_order); > > return error; > > } > > > > diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c > > index 3949f720b5354..c6933440f8066 100644 > > --- a/fs/xfs/xfs_mount.c > > +++ b/fs/xfs/xfs_mount.c > > @@ -134,7 +134,6 @@ xfs_sb_validate_fsb_count( > > { > > uint64_t max_bytes; > > > > - ASSERT(PAGE_SHIFT >= sbp->sb_blocklog); > > ASSERT(sbp->sb_blocklog >= BBSHIFT); > > > > if (check_shl_overflow(nblocks, sbp->sb_blocklog, &max_bytes)) > > diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c > > index 27e9f749c4c7f..b2f5a1706c59d 100644 > > --- a/fs/xfs/xfs_super.c > > +++ b/fs/xfs/xfs_super.c > > @@ -1638,16 +1638,28 @@ xfs_fs_fill_super( > > goto out_free_sb; > > } > > > > - /* > > - * Until this is fixed only page-sized or smaller data blocks work. > > - */ > > if (mp->m_sb.sb_blocksize > PAGE_SIZE) { > > - xfs_warn(mp, > > - "File system with blocksize %d bytes. " > > - "Only pagesize (%ld) or less will currently work.", > > + size_t max_folio_size = mapping_max_folio_size_supported(); > > + > > + if (!xfs_has_crc(mp)) { > > + xfs_warn(mp, > > +"V4 Filesystem with blocksize %d bytes. Only pagesize (%ld) or less is supported.", > > mp->m_sb.sb_blocksize, PAGE_SIZE); > > - error = -ENOSYS; > > - goto out_free_sb; > > + error = -ENOSYS; > > + goto out_free_sb; > > + } > > + > > + if (mp->m_sb.sb_blocksize > max_folio_size) { > > + xfs_warn(mp, > > +"block size (%u bytes) not supported; Only block size (%ld) or less is supported", > > + mp->m_sb.sb_blocksize, max_folio_size); > > Dumb nit: Please indent ^^^ this second line so that it doesn't start on > the same column as the separate statement below it. > Done :)
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index 0af5b7a33d055..1921b689888b8 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -3033,6 +3033,11 @@ xfs_ialloc_setup_geometry( igeo->ialloc_align = mp->m_dalign; else igeo->ialloc_align = 0; + + if (mp->m_sb.sb_blocksize > PAGE_SIZE) + igeo->min_folio_order = mp->m_sb.sb_blocklog - PAGE_SHIFT; + else + igeo->min_folio_order = 0; } /* Compute the location of the root directory inode that is laid out by mkfs. */ diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h index 2f7413afbf46c..33b84a3a83ff6 100644 --- a/fs/xfs/libxfs/xfs_shared.h +++ b/fs/xfs/libxfs/xfs_shared.h @@ -224,6 +224,9 @@ struct xfs_ino_geometry { /* precomputed value for di_flags2 */ uint64_t new_diflags2; + /* minimum folio order of a page cache allocation */ + unsigned int min_folio_order; + }; #endif /* __XFS_SHARED_H__ */ diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index cf629302d48e7..0fcf235e50235 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -88,7 +88,8 @@ xfs_inode_alloc( /* VFS doesn't initialise i_mode! */ VFS_I(ip)->i_mode = 0; - mapping_set_large_folios(VFS_I(ip)->i_mapping); + mapping_set_folio_min_order(VFS_I(ip)->i_mapping, + M_IGEO(mp)->min_folio_order); XFS_STATS_INC(mp, vn_active); ASSERT(atomic_read(&ip->i_pincount) == 0); @@ -325,7 +326,8 @@ xfs_reinit_inode( inode->i_uid = uid; inode->i_gid = gid; inode->i_state = state; - mapping_set_large_folios(inode->i_mapping); + mapping_set_folio_min_order(inode->i_mapping, + M_IGEO(mp)->min_folio_order); return error; } diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 3949f720b5354..c6933440f8066 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -134,7 +134,6 @@ xfs_sb_validate_fsb_count( { uint64_t max_bytes; - ASSERT(PAGE_SHIFT >= sbp->sb_blocklog); ASSERT(sbp->sb_blocklog >= BBSHIFT); if (check_shl_overflow(nblocks, sbp->sb_blocklog, &max_bytes)) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 27e9f749c4c7f..b2f5a1706c59d 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1638,16 +1638,28 @@ xfs_fs_fill_super( goto out_free_sb; } - /* - * Until this is fixed only page-sized or smaller data blocks work. - */ if (mp->m_sb.sb_blocksize > PAGE_SIZE) { - xfs_warn(mp, - "File system with blocksize %d bytes. " - "Only pagesize (%ld) or less will currently work.", + size_t max_folio_size = mapping_max_folio_size_supported(); + + if (!xfs_has_crc(mp)) { + xfs_warn(mp, +"V4 Filesystem with blocksize %d bytes. Only pagesize (%ld) or less is supported.", mp->m_sb.sb_blocksize, PAGE_SIZE); - error = -ENOSYS; - goto out_free_sb; + error = -ENOSYS; + goto out_free_sb; + } + + if (mp->m_sb.sb_blocksize > max_folio_size) { + xfs_warn(mp, +"block size (%u bytes) not supported; Only block size (%ld) or less is supported", + mp->m_sb.sb_blocksize, max_folio_size); + error = -ENOSYS; + goto out_free_sb; + } + + xfs_warn(mp, +"EXPERIMENTAL: V5 Filesystem with Large Block Size (%d bytes) enabled.", + mp->m_sb.sb_blocksize); } /* Ensure this filesystem fits in the page cache limits */ diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 3a876d6801a90..61a7649d86e57 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -373,6 +373,19 @@ static inline void mapping_set_gfp_mask(struct address_space *m, gfp_t mask) #define MAX_XAS_ORDER (XA_CHUNK_SHIFT * 2 - 1) #define MAX_PAGECACHE_ORDER min(MAX_XAS_ORDER, PREFERRED_MAX_PAGECACHE_ORDER) +/* + * mapping_max_folio_size_supported() - Check the max folio size supported + * + * The filesystem should call this function at mount time if there is a + * requirement on the folio mapping size in the page cache. + */ +static inline size_t mapping_max_folio_size_supported(void) +{ + if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) + return 1U << (PAGE_SHIFT + MAX_PAGECACHE_ORDER); + return PAGE_SIZE; +} + /* * mapping_set_folio_order_range() - Set the orders supported by a file. * @mapping: The address space of the file.