> -----Original Message----- > From: Jaegeuk Kim [mailto:jaegeuk@xxxxxxxxxx] > Sent: Saturday, July 26, 2014 6:47 AM > To: linux-kernel@xxxxxxxxxxxxxxx; linux-fsdevel@xxxxxxxxxxxxxxx; > linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx > Cc: Jaegeuk Kim > Subject: [f2fs-dev] [PATCH 02/11] f2fs: punch the core function for inode management > > This patch punches out the core functions to manage the inode numbers. > > Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx> Reviewed-by: Chao Yu <chao2.yu@xxxxxxxxxxx> > --- > fs/f2fs/checkpoint.c | 81 ++++++++++++++++++++++++++++------------------------ > 1 file changed, 44 insertions(+), 37 deletions(-) > > diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c > index 0b4710c..3e3c2c3 100644 > --- a/fs/f2fs/checkpoint.c > +++ b/fs/f2fs/checkpoint.c > @@ -282,6 +282,47 @@ const struct address_space_operations f2fs_meta_aops = { > .set_page_dirty = f2fs_set_meta_page_dirty, > }; > > +static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino) > +{ > + struct list_head *head; > + struct ino_entry *new, *e; > + > + new = f2fs_kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC); > + new->ino = ino; > + > + spin_lock(&sbi->orphan_inode_lock); > + list_for_each_entry(e, &sbi->orphan_inode_list, list) { > + if (e->ino == ino) { > + spin_unlock(&sbi->orphan_inode_lock); > + kmem_cache_free(orphan_entry_slab, new); > + return; > + } > + if (e->ino > ino) > + break; > + } > + > + /* add new entry into list which is sorted by inode number */ > + list_add_tail(&new->list, &e->list); > + spin_unlock(&sbi->orphan_inode_lock); > +} > + > +static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino) > +{ > + struct ino_entry *e; > + > + spin_lock(&sbi->orphan_inode_lock); > + list_for_each_entry(e, &sbi->orphan_inode_list, list) { > + if (e->ino == ino) { > + list_del(&e->list); > + sbi->n_orphans--; > + spin_unlock(&sbi->orphan_inode_lock); > + kmem_cache_free(orphan_entry_slab, e); > + return; > + } > + } > + spin_unlock(&sbi->orphan_inode_lock); > +} > + > int acquire_orphan_inode(struct f2fs_sb_info *sbi) > { > int err = 0; > @@ -306,48 +347,14 @@ void release_orphan_inode(struct f2fs_sb_info *sbi) > > void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) > { > - struct list_head *head; > - struct orphan_inode_entry *new, *orphan; > - > - new = f2fs_kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC); > - new->ino = ino; > - > - spin_lock(&sbi->orphan_inode_lock); > - head = &sbi->orphan_inode_list; > - list_for_each_entry(orphan, head, list) { > - if (orphan->ino == ino) { > - spin_unlock(&sbi->orphan_inode_lock); > - kmem_cache_free(orphan_entry_slab, new); > - return; > - } > - > - if (orphan->ino > ino) > - break; > - } > - > /* add new orphan entry into list which is sorted by inode number */ > - list_add_tail(&new->list, &orphan->list); > - spin_unlock(&sbi->orphan_inode_lock); > + __add_ino_entry(sbi, ino); > } > > void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) > { > - struct list_head *head; > - struct orphan_inode_entry *orphan; > - > - spin_lock(&sbi->orphan_inode_lock); > - head = &sbi->orphan_inode_list; > - list_for_each_entry(orphan, head, list) { > - if (orphan->ino == ino) { > - list_del(&orphan->list); > - f2fs_bug_on(sbi->n_orphans == 0); > - sbi->n_orphans--; > - spin_unlock(&sbi->orphan_inode_lock); > - kmem_cache_free(orphan_entry_slab, orphan); > - return; > - } > - } > - spin_unlock(&sbi->orphan_inode_lock); > + /* remove orphan entry from orphan list */ > + __remove_ino_entry(sbi, ino); > } > > static void recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) > -- > 1.8.5.2 (Apple Git-48) > > > ------------------------------------------------------------------------------ > Want fast and easy access to all the code in your enterprise? Index and > search up to 200,000 lines of code with a free copy of Black Duck > Code Sight - the same software that powers the world's largest code > search on Ohloh, the Black Duck Open Hub! Try it now. > http://p.sf.net/sfu/bds > _______________________________________________ > Linux-f2fs-devel mailing list > Linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
