Re: [lustre-devel] [PATCH 06/24] lustre: Convert to separately allocated bdi
From: Dilger, Andreas <hidden>
Date: 2017-02-08 00:44:31
Also in:
linux-fsdevel
On Feb 2, 2017, at 10:34, Jan Kara [off-list ref] wrote:
Allocate struct backing_dev_info separately instead of embedding it inside superblock. This unifies handling of bdi among users. CC: Oleg Drokin <redacted> CC: Andreas Dilger <redacted> CC: James Simmons <redacted> CC: lustre-devel@lists.lustre.org Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Andreas Dilger <redacted>
quoted hunk ↗ jump to hunk
--- .../staging/lustre/lustre/include/lustre_disk.h | 4 ---- drivers/staging/lustre/lustre/llite/llite_lib.c | 24 +++------------------- 2 files changed, 3 insertions(+), 25 deletions(-)diff --git a/drivers/staging/lustre/lustre/include/lustre_disk.h b/drivers/staging/lustre/lustre/include/lustre_disk.h index 8886458748c1..a676bccabd43 100644 --- a/drivers/staging/lustre/lustre/include/lustre_disk.h +++ b/drivers/staging/lustre/lustre/include/lustre_disk.h@@ -133,13 +133,9 @@ struct lustre_sb_info {struct obd_export *lsi_osd_exp; char lsi_osd_type[16]; char lsi_fstype[16]; - struct backing_dev_info lsi_bdi; /* each client mountpoint needs - * own backing_dev_info - */ }; #define LSI_UMOUNT_FAILOVER 0x00200000 -#define LSI_BDI_INITIALIZED 0x00400000 #define s2lsi(sb) ((struct lustre_sb_info *)((sb)->s_fs_info)) #define s2lsi_nocast(sb) ((sb)->s_fs_info)diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 25f5aed97f63..4f07d2e60d40 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c@@ -861,15 +861,6 @@ void ll_lli_init(struct ll_inode_info *lli)mutex_init(&lli->lli_layout_mutex); } -static inline int ll_bdi_register(struct backing_dev_info *bdi) -{ - static atomic_t ll_bdi_num = ATOMIC_INIT(0); - - bdi->name = "lustre"; - return bdi_register(bdi, NULL, "lustre-%d", - atomic_inc_return(&ll_bdi_num)); -} - int ll_fill_super(struct super_block *sb, struct vfsmount *mnt) { struct lustre_profile *lprof = NULL;@@ -879,6 +870,7 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)char *profilenm = get_profile_name(sb); struct config_llog_instance *cfg; int err; + static atomic_t ll_bdi_num = ATOMIC_INIT(0); CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);@@ -901,16 +893,11 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)if (err) goto out_free; - err = bdi_init(&lsi->lsi_bdi); - if (err) - goto out_free; - lsi->lsi_flags |= LSI_BDI_INITIALIZED; - lsi->lsi_bdi.capabilities = 0; - err = ll_bdi_register(&lsi->lsi_bdi); + err = super_setup_bdi_name(sb, "lustre-%d", + atomic_inc_return(&ll_bdi_num)); if (err) goto out_free; - sb->s_bdi = &lsi->lsi_bdi; /* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */ sb->s_d_op = &ll_d_ops;@@ -1031,11 +1018,6 @@ void ll_put_super(struct super_block *sb)if (profilenm) class_del_profile(profilenm); - if (lsi->lsi_flags & LSI_BDI_INITIALIZED) { - bdi_destroy(&lsi->lsi_bdi); - lsi->lsi_flags &= ~LSI_BDI_INITIALIZED; - } - ll_free_sbi(sb); lsi->lsi_llsbi = NULL; -- 2.10.2 _______________________________________________ lustre-devel mailing list lustre-devel@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-devel-lustre.org
Cheers, Andreas -- Andreas Dilger Lustre Principal Architect Intel Corporation