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Sat, 25 Oct 2025 09:41:20 -0700 (PDT) From: "Yury Norov (NVIDIA)" To: Linus Torvalds , Linus Walleij , Nicolas Frattaroli , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Sandeep Dhavale , Hongbo Li , Jaegeuk Kim , Tony Luck , Reinette Chatre , Dave Martin , James Morse , Babu Moger , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , Vlastimil Babka , Suren Baghdasaryan , Jinjiang Tu , Baolin Wang , Ryan Roberts , Andrei Vagin , linux-erofs@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Cc: "Yury Norov (NVIDIA)" , Rasmus Villemoes Subject: [PATCH 19/21] fs: don't use GENMASK() Date: Sat, 25 Oct 2025 12:40:18 -0400 Message-ID: <20251025164023.308884-20-yury.norov@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251025164023.308884-1-yury.norov@gmail.com> References: <20251025164023.308884-1-yury.norov@gmail.com> 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 Content-Type: text/plain; charset="utf-8" GENMASK(high, low) notation is confusing. FIRST/LAST_BITS() are more appropriate. Signed-off-by: Yury Norov (NVIDIA) --- fs/erofs/internal.h | 2 +- fs/f2fs/data.c | 2 +- fs/f2fs/inode.c | 2 +- fs/f2fs/segment.c | 2 +- fs/f2fs/super.c | 2 +- fs/proc/task_mmu.c | 2 +- fs/resctrl/pseudo_lock.c | 2 +- include/linux/f2fs_fs.h | 2 +- 8 files changed, 8 insertions(+), 8 deletions(-) diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index f7f622836198..6e0f03092c52 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -250,7 +250,7 @@ static inline u64 erofs_nid_to_ino64(struct erofs_sb_in= fo *sbi, erofs_nid_t nid) * Note: on-disk NIDs remain unchanged as they are primarily used for * compatibility with non-LFS 32-bit applications. */ - return ((nid << 1) & GENMASK_ULL(63, 32)) | (nid & GENMASK(30, 0)) | + return ((nid << 1) & LAST_BITS_ULL(32)) | (nid & FIRST_BITS(31)) | ((nid >> EROFS_DIRENT_NID_METABOX_BIT) << 31); } =20 diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 775aa4f63aa3..ef08464e003f 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -416,7 +416,7 @@ int f2fs_target_device_index(struct f2fs_sb_info *sbi, = block_t blkaddr) =20 static blk_opf_t f2fs_io_flags(struct f2fs_io_info *fio) { - unsigned int temp_mask =3D GENMASK(NR_TEMP_TYPE - 1, 0); + unsigned int temp_mask =3D FIRST_BITS(NR_TEMP_TYPE); unsigned int fua_flag, meta_flag, io_flag; blk_opf_t op_flags =3D 0; =20 diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index 8c4eafe9ffac..42a43f558136 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -524,7 +524,7 @@ static int do_read_inode(struct inode *inode) fi->i_compress_level =3D compress_flag >> COMPRESS_LEVEL_OFFSET; fi->i_compress_flag =3D compress_flag & - GENMASK(COMPRESS_LEVEL_OFFSET - 1, 0); + FIRST_BITS(COMPRESS_LEVEL_OFFSET); fi->i_cluster_size =3D BIT(fi->i_log_cluster_size); set_inode_flag(inode, FI_COMPRESSED_FILE); } diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index b45eace879d7..64433d3b67d4 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -5425,7 +5425,7 @@ static int do_fix_curseg_write_pointer(struct f2fs_sb= _info *sbi, int type) wp_block =3D zbd->start_blk + (zone.wp >> log_sectors_per_block); wp_segno =3D GET_SEGNO(sbi, wp_block); wp_blkoff =3D wp_block - START_BLOCK(sbi, wp_segno); - wp_sector_off =3D zone.wp & GENMASK(log_sectors_per_block - 1, 0); + wp_sector_off =3D zone.wp & FIRST_BITS(log_sectors_per_block); =20 if (cs->segno =3D=3D wp_segno && cs->next_blkoff =3D=3D wp_blkoff && wp_sector_off =3D=3D 0) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index db7afb806411..96621fd45cdc 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -4501,7 +4501,7 @@ static void save_stop_reason(struct f2fs_sb_info *sbi= , unsigned char reason) unsigned long flags; =20 spin_lock_irqsave(&sbi->error_lock, flags); - if (sbi->stop_reason[reason] < GENMASK(BITS_PER_BYTE - 1, 0)) + if (sbi->stop_reason[reason] < FIRST_BITS(BITS_PER_BYTE)) sbi->stop_reason[reason]++; spin_unlock_irqrestore(&sbi->error_lock, flags); } diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index fc35a0543f01..71de487b244c 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -1845,7 +1845,7 @@ struct pagemapread { =20 #define PM_ENTRY_BYTES sizeof(pagemap_entry_t) #define PM_PFRAME_BITS 55 -#define PM_PFRAME_MASK GENMASK_ULL(PM_PFRAME_BITS - 1, 0) +#define PM_PFRAME_MASK FIRST_BITS_ULL(PM_PFRAME_BITS) #define PM_SOFT_DIRTY BIT_ULL(55) #define PM_MMAP_EXCLUSIVE BIT_ULL(56) #define PM_UFFD_WP BIT_ULL(57) diff --git a/fs/resctrl/pseudo_lock.c b/fs/resctrl/pseudo_lock.c index 87bbc2605de1..45703bbd3bca 100644 --- a/fs/resctrl/pseudo_lock.c +++ b/fs/resctrl/pseudo_lock.c @@ -30,7 +30,7 @@ */ static unsigned int pseudo_lock_major; =20 -static unsigned long pseudo_lock_minor_avail =3D GENMASK(MINORBITS, 0); +static unsigned long pseudo_lock_minor_avail =3D FIRST_BITS(MINORBITS + 1); =20 static char *pseudo_lock_devnode(const struct device *dev, umode_t *mode) { diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index 6afb4a13b81d..9996356b79e0 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -356,7 +356,7 @@ enum { OFFSET_BIT_SHIFT }; =20 -#define OFFSET_BIT_MASK GENMASK(OFFSET_BIT_SHIFT - 1, 0) +#define OFFSET_BIT_MASK FIRST_BITS(OFFSET_BIT_SHIFT) =20 struct f2fs_node { /* can be one of three types: inode, direct, and indirect types */ --=20 2.43.0