From b402d72cf7b338a074e3c12b305ec79284e18845 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 14 Jun 2007 04:27:21 +0900 Subject: sysfs: rename sysfs_dirent->s_type to s_flags and make room for flags Rename sysfs_dirent->s_type to s_flags, pack type into lower eight bits and reserve the rest for flags. sysfs_type() can used to access the type. All existing sd->s_type accesses are converted to use sysfs_type(). While at it, type test is changed to equality test instead of bit-and test where appropriate. Signed-off-by: Tejun Heo Signed-off-by: Greg Kroah-Hartman --- fs/sysfs/dir.c | 33 ++++++++++++++++++++------------- 1 file changed, 20 insertions(+), 13 deletions(-) (limited to 'fs/sysfs/dir.c') diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index b4074ad..eb9bc0a 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -218,9 +218,9 @@ void release_sysfs_dirent(struct sysfs_dirent * sd) repeat: parent_sd = sd->s_parent; - if (sd->s_type & SYSFS_KOBJ_LINK) + if (sysfs_type(sd) == SYSFS_KOBJ_LINK) sysfs_put(sd->s_elem.symlink.target_sd); - if (sd->s_type & SYSFS_COPY_NAME) + if (sysfs_type(sd) & SYSFS_COPY_NAME) kfree(sd->s_name); kfree(sd->s_iattr); sysfs_free_ino(sd->s_ino); @@ -282,7 +282,7 @@ struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type) sd->s_name = name; sd->s_mode = mode; - sd->s_type = type; + sd->s_flags = type; return sd; @@ -330,7 +330,7 @@ int sysfs_dirent_exist(struct sysfs_dirent *parent_sd, struct sysfs_dirent * sd; for (sd = parent_sd->s_children; sd; sd = sd->s_sibling) { - if (sd->s_type) { + if (sysfs_type(sd)) { if (strcmp(sd->s_name, new)) continue; else @@ -446,11 +446,12 @@ static struct dentry * sysfs_lookup(struct inode *dir, struct dentry *dentry, { struct sysfs_dirent * parent_sd = dentry->d_parent->d_fsdata; struct sysfs_dirent * sd; + struct bin_attribute *bin_attr; struct inode *inode; int found = 0; for (sd = parent_sd->s_children; sd; sd = sd->s_sibling) { - if ((sd->s_type & SYSFS_NOT_PINNED) && + if ((sysfs_type(sd) & SYSFS_NOT_PINNED) && !strcmp(sd->s_name, dentry->d_name.name)) { found = 1; break; @@ -468,16 +469,22 @@ static struct dentry * sysfs_lookup(struct inode *dir, struct dentry *dentry, if (inode->i_state & I_NEW) { /* initialize inode according to type */ - if (sd->s_type & SYSFS_KOBJ_ATTR) { + switch (sysfs_type(sd)) { + case SYSFS_KOBJ_ATTR: inode->i_size = PAGE_SIZE; inode->i_fop = &sysfs_file_operations; - } else if (sd->s_type & SYSFS_KOBJ_BIN_ATTR) { - struct bin_attribute *bin_attr = - sd->s_elem.bin_attr.bin_attr; + break; + case SYSFS_KOBJ_BIN_ATTR: + bin_attr = sd->s_elem.bin_attr.bin_attr; inode->i_size = bin_attr->size; inode->i_fop = &bin_fops; - } else if (sd->s_type & SYSFS_KOBJ_LINK) + break; + case SYSFS_KOBJ_LINK: inode->i_op = &sysfs_symlink_inode_operations; + break; + default: + BUG(); + } } sysfs_instantiate(dentry, inode); @@ -532,7 +539,7 @@ static void __sysfs_remove_dir(struct dentry *dentry) while (*pos) { struct sysfs_dirent *sd = *pos; - if (sd->s_type && (sd->s_type & SYSFS_NOT_PINNED)) { + if (sysfs_type(sd) && (sysfs_type(sd) & SYSFS_NOT_PINNED)) { *pos = sd->s_sibling; sd->s_sibling = removed; removed = sd; @@ -775,7 +782,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir) const char * name; int len; - if (!next->s_type) + if (!sysfs_type(next)) continue; name = next->s_name; @@ -824,7 +831,7 @@ static loff_t sysfs_dir_lseek(struct file * file, loff_t offset, int origin) pos = &sd->s_children; while (n && *pos) { struct sysfs_dirent *next = *pos; - if (next->s_type) + if (sysfs_type(next)) n--; pos = &(*pos)->s_sibling; } -- cgit v1.1