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[JFFS2] semaphore->mutex conversion

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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
David Woodhouse
2008-04-22 15:13:40 +01:00
parent 52f8301437
commit ced2207036
14 changed files with 168 additions and 167 deletions
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50
fs/jffs2/write.c
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@ -137,12 +137,12 @@ struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2
JFFS2_SUMMARY_INODE_SIZE);
} else {
/* Locking pain */
up(&f->sem);
mutex_unlock(&f->sem);
jffs2_complete_reservation(c);
ret = jffs2_reserve_space(c, sizeof(*ri) + datalen, &dummy,
alloc_mode, JFFS2_SUMMARY_INODE_SIZE);
down(&f->sem);
mutex_lock(&f->sem);
}
if (!ret) {
@ -285,12 +285,12 @@ struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jff
JFFS2_SUMMARY_DIRENT_SIZE(namelen));
} else {
/* Locking pain */
up(&f->sem);
mutex_unlock(&f->sem);
jffs2_complete_reservation(c);
ret = jffs2_reserve_space(c, sizeof(*rd) + namelen, &dummy,
alloc_mode, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
down(&f->sem);
mutex_lock(&f->sem);
}
if (!ret) {
@ -353,7 +353,7 @@ int jffs2_write_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
D1(printk(KERN_DEBUG "jffs2_reserve_space returned %d\n", ret));
break;
}
down(&f->sem);
mutex_lock(&f->sem);
datalen = min_t(uint32_t, writelen, PAGE_CACHE_SIZE - (offset & (PAGE_CACHE_SIZE-1)));
cdatalen = min_t(uint32_t, alloclen - sizeof(*ri), datalen);
@ -381,7 +381,7 @@ int jffs2_write_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
if (IS_ERR(fn)) {
ret = PTR_ERR(fn);
up(&f->sem);
mutex_unlock(&f->sem);
jffs2_complete_reservation(c);
if (!retried) {
/* Write error to be retried */
@ -403,11 +403,11 @@ int jffs2_write_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
jffs2_mark_node_obsolete(c, fn->raw);
jffs2_free_full_dnode(fn);
up(&f->sem);
mutex_unlock(&f->sem);
jffs2_complete_reservation(c);
break;
}
up(&f->sem);
mutex_unlock(&f->sem);
jffs2_complete_reservation(c);
if (!datalen) {
printk(KERN_WARNING "Eep. We didn't actually write any data in jffs2_write_inode_range()\n");
@ -439,7 +439,7 @@ int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, str
JFFS2_SUMMARY_INODE_SIZE);
D1(printk(KERN_DEBUG "jffs2_do_create(): reserved 0x%x bytes\n", alloclen));
if (ret) {
up(&f->sem);
mutex_unlock(&f->sem);
return ret;
}
@ -454,7 +454,7 @@ int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, str
if (IS_ERR(fn)) {
D1(printk(KERN_DEBUG "jffs2_write_dnode() failed\n"));
/* Eeek. Wave bye bye */
up(&f->sem);
mutex_unlock(&f->sem);
jffs2_complete_reservation(c);
return PTR_ERR(fn);
}
@ -463,7 +463,7 @@ int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, str
*/
f->metadata = fn;
up(&f->sem);
mutex_unlock(&f->sem);
jffs2_complete_reservation(c);
ret = jffs2_init_security(&f->vfs_inode, &dir_f->vfs_inode);
@ -489,7 +489,7 @@ int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, str
return -ENOMEM;
}
down(&dir_f->sem);
mutex_lock(&dir_f->sem);
rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
@ -513,7 +513,7 @@ int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, str
/* dirent failed to write. Delete the inode normally
as if it were the final unlink() */
jffs2_complete_reservation(c);
up(&dir_f->sem);
mutex_unlock(&dir_f->sem);
return PTR_ERR(fd);
}
@ -522,7 +522,7 @@ int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, str
jffs2_add_fd_to_list(c, fd, &dir_f->dents);
jffs2_complete_reservation(c);
up(&dir_f->sem);
mutex_unlock(&dir_f->sem);
return 0;
}
@ -551,7 +551,7 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
return ret;
}
down(&dir_f->sem);
mutex_lock(&dir_f->sem);
/* Build a deletion node */
rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
@ -574,21 +574,21 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
if (IS_ERR(fd)) {
jffs2_complete_reservation(c);
up(&dir_f->sem);
mutex_unlock(&dir_f->sem);
return PTR_ERR(fd);
}
/* File it. This will mark the old one obsolete. */
jffs2_add_fd_to_list(c, fd, &dir_f->dents);
up(&dir_f->sem);
mutex_unlock(&dir_f->sem);
} else {
uint32_t nhash = full_name_hash(name, namelen);
fd = dir_f->dents;
/* We don't actually want to reserve any space, but we do
want to be holding the alloc_sem when we write to flash */
down(&c->alloc_sem);
down(&dir_f->sem);
mutex_lock(&c->alloc_sem);
mutex_lock(&dir_f->sem);
for (fd = dir_f->dents; fd; fd = fd->next) {
if (fd->nhash == nhash &&
@ -607,7 +607,7 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
break;
}
}
up(&dir_f->sem);
mutex_unlock(&dir_f->sem);
}
/* dead_f is NULL if this was a rename not a real unlink */
@ -615,7 +615,7 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
pointing to an inode which didn't exist. */
if (dead_f && dead_f->inocache) {
down(&dead_f->sem);
mutex_lock(&dead_f->sem);
if (S_ISDIR(OFNI_EDONI_2SFFJ(dead_f)->i_mode)) {
while (dead_f->dents) {
@ -639,7 +639,7 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
dead_f->inocache->nlink--;
/* NB: Caller must set inode nlink if appropriate */
up(&dead_f->sem);
mutex_unlock(&dead_f->sem);
}
jffs2_complete_reservation(c);
@ -666,7 +666,7 @@ int jffs2_do_link (struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint
return ret;
}
down(&dir_f->sem);
mutex_lock(&dir_f->sem);
/* Build a deletion node */
rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
@ -691,7 +691,7 @@ int jffs2_do_link (struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint
if (IS_ERR(fd)) {
jffs2_complete_reservation(c);
up(&dir_f->sem);
mutex_unlock(&dir_f->sem);
return PTR_ERR(fd);
}
@ -699,7 +699,7 @@ int jffs2_do_link (struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint
jffs2_add_fd_to_list(c, fd, &dir_f->dents);
jffs2_complete_reservation(c);
up(&dir_f->sem);
mutex_unlock(&dir_f->sem);
return 0;
}