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Fri, 4 Oct 2024 20:05:34 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id dhaFOo5KAGf/RQAAD6G6ig (envelope-from ); Fri, 04 Oct 2024 20:05:34 +0000 From: Goldwyn Rodrigues To: linux-kernel@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, Goldwyn Rodrigues Subject: [PATCH 07/12] btrfs: btrfs_em_to_iomap() to convert em to iomap Date: Fri, 4 Oct 2024 16:04:34 -0400 Message-ID: <23762f818bfb84bd38b4ad0e803588dc140cd14a.1728071257.git.rgoldwyn@suse.com> X-Mailer: git-send-email 2.46.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spam-Level: X-Spamd-Result: default: False [-3.80 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; FROM_EQ_ENVFROM(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.com:email,suse.com:mid]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] X-Spam-Score: -3.80 X-Spam-Flag: NO Content-Type: text/plain; charset="utf-8" From: Goldwyn Rodrigues btrfs_em_to_iomap() converts and extent map into passed argument struct iomap. It makes sure the information is in multiple of sectorsize block. Signed-off-by: Goldwyn Rodrigues --- fs/btrfs/extent_io.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index cb0a39370d30..7f40c2b8bfb8 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "extent_io.h" #include "extent-io-tree.h" #include "extent_map.h" @@ -900,6 +901,35 @@ void clear_folio_extent_mapped(struct folio *folio) folio_detach_private(folio); } =20 +static void btrfs_em_to_iomap(struct inode *inode, + struct extent_map *em, struct iomap *iomap, + loff_t sector_pos, bool write) +{ + struct btrfs_fs_info *fs_info =3D btrfs_sb(inode->i_sb); + + if (!btrfs_is_data_reloc_root(BTRFS_I(inode)->root) && + em->flags & EXTENT_FLAG_PINNED) { + iomap->type =3D IOMAP_UNWRITTEN; + iomap->addr =3D extent_map_block_start(em); + } else if (em->disk_bytenr =3D=3D EXTENT_MAP_INLINE) { + iomap->addr =3D IOMAP_NULL_ADDR; + iomap->type =3D IOMAP_INLINE; + } else if (em->disk_bytenr =3D=3D EXTENT_MAP_HOLE || + (!write && (em->flags & EXTENT_FLAG_PREALLOC))) { + iomap->addr =3D IOMAP_NULL_ADDR; + iomap->type =3D IOMAP_HOLE; + } else if (extent_map_is_compressed(em)) { + iomap->type =3D IOMAP_ENCODED; + iomap->addr =3D em->disk_bytenr; + } else { + iomap->addr =3D extent_map_block_start(em); + iomap->type =3D IOMAP_MAPPED; + } + iomap->offset =3D em->start; + iomap->bdev =3D fs_info->fs_devices->latest_dev->bdev; + iomap->length =3D em->len; +} + static struct extent_map *__get_extent_map(struct inode *inode, struct folio *folio, u64 start, u64 len, struct extent_map **em_cached) --=20 2.46.1