From: Al Viro Date: Fri, 19 Jul 2013 11:58:27 +0000 (+0400) Subject: oprofilefs_mkdir() doesn't need superblock argument X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=ecde28237e10de3750a97579f42bc2ec65b8a0e1;p=openwrt%2Fstaging%2Fblogic.git oprofilefs_mkdir() doesn't need superblock argument it's always equal to ->d_sb of the second argument (parent dentry), due to either being literally that, or ->d_sb of parent's parent. Signed-off-by: Al Viro --- diff --git a/arch/alpha/oprofile/common.c b/arch/alpha/oprofile/common.c index d79bf68caee2..a44608b697ac 100644 --- a/arch/alpha/oprofile/common.c +++ b/arch/alpha/oprofile/common.c @@ -115,7 +115,7 @@ op_axp_create_files(struct dentry *root) char buf[4]; snprintf(buf, sizeof buf, "%d", i); - dir = oprofilefs_mkdir(root->d_sb, root, buf); + dir = oprofilefs_mkdir(root, buf); oprofilefs_create_ulong(root->d_sb, dir, "enabled", &ctr[i].enabled); oprofilefs_create_ulong(root->d_sb, dir, "event", &ctr[i].event); diff --git a/arch/avr32/oprofile/op_model_avr32.c b/arch/avr32/oprofile/op_model_avr32.c index 80a06158da82..7d920a41b441 100644 --- a/arch/avr32/oprofile/op_model_avr32.c +++ b/arch/avr32/oprofile/op_model_avr32.c @@ -105,7 +105,7 @@ static int avr32_perf_counter_create_files(struct dentry *root) for (i = 0; i < NR_counter; i++) { snprintf(filename, sizeof(filename), "%u", i); - dir = oprofilefs_mkdir(root->d_sb, root, filename); + dir = oprofilefs_mkdir(root, filename); oprofilefs_create_ulong(root->d_sb, dir, "enabled", &counter[i].enabled); diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c index 7439ae2df05c..755caf04656e 100644 --- a/arch/mips/oprofile/common.c +++ b/arch/mips/oprofile/common.c @@ -42,7 +42,7 @@ static int op_mips_create_files(struct dentry *root) char buf[4]; snprintf(buf, sizeof buf, "%d", i); - dir = oprofilefs_mkdir(root->d_sb, root, buf); + dir = oprofilefs_mkdir(root, buf); oprofilefs_create_ulong(root->d_sb, dir, "enabled", &ctr[i].enabled); oprofilefs_create_ulong(root->d_sb, dir, "event", &ctr[i].event); diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c index addc62317f45..60a286b367fc 100644 --- a/arch/powerpc/oprofile/common.c +++ b/arch/powerpc/oprofile/common.c @@ -160,7 +160,7 @@ static int op_powerpc_create_files(struct dentry *root) char buf[4]; snprintf(buf, sizeof buf, "%d", i); - dir = oprofilefs_mkdir(root->d_sb, root, buf); + dir = oprofilefs_mkdir(root, buf); oprofilefs_create_ulong(root->d_sb, dir, "enabled", &ctr[i].enabled); oprofilefs_create_ulong(root->d_sb, dir, "event", &ctr[i].event); diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index 712d57bb783a..5ae06db7ec58 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -350,7 +350,7 @@ static int oprofile_create_hwsampling_files(struct dentry *root) { struct dentry *dir; - dir = oprofilefs_mkdir(root->d_sb, root, "timer"); + dir = oprofilefs_mkdir(root, "timer"); if (!dir) return -EINVAL; @@ -375,7 +375,7 @@ static int oprofile_create_hwsampling_files(struct dentry *root) * and can only be set to 0. */ - dir = oprofilefs_mkdir(root->d_sb, root, "0"); + dir = oprofilefs_mkdir(root, "0"); if (!dir) return -EINVAL; @@ -395,7 +395,7 @@ static int oprofile_create_hwsampling_files(struct dentry *root) * space tools. The /dev/oprofile/hwsampling fs is * provided in that case. */ - dir = oprofilefs_mkdir(root->d_sb, root, "hwsampling"); + dir = oprofilefs_mkdir(root, "hwsampling"); if (!dir) return -EINVAL; diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index 483f02b8c1a8..8bb2de6e103c 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -420,7 +420,7 @@ static int nmi_create_files(struct dentry *root) continue; snprintf(buf, sizeof(buf), "%d", i); - dir = oprofilefs_mkdir(root->d_sb, root, buf); + dir = oprofilefs_mkdir(root, buf); oprofilefs_create_ulong(root->d_sb, dir, "enabled", &counter_config[i].enabled); oprofilefs_create_ulong(root->d_sb, dir, "event", &counter_config[i].event); oprofilefs_create_ulong(root->d_sb, dir, "count", &counter_config[i].count); diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c index 34e16c2fe357..99131435ea32 100644 --- a/arch/x86/oprofile/op_model_amd.c +++ b/arch/x86/oprofile/op_model_amd.c @@ -479,7 +479,7 @@ static int setup_ibs_files(struct dentry *root) ibs_config.max_cnt_op = 250000; if (ibs_caps & IBS_CAPS_FETCHSAM) { - dir = oprofilefs_mkdir(root->d_sb, root, "ibs_fetch"); + dir = oprofilefs_mkdir(root, "ibs_fetch"); oprofilefs_create_ulong(root->d_sb, dir, "enable", &ibs_config.fetch_enabled); oprofilefs_create_ulong(root->d_sb, dir, "max_count", @@ -489,7 +489,7 @@ static int setup_ibs_files(struct dentry *root) } if (ibs_caps & IBS_CAPS_OPSAM) { - dir = oprofilefs_mkdir(root->d_sb, root, "ibs_op"); + dir = oprofilefs_mkdir(root, "ibs_op"); oprofilefs_create_ulong(root->d_sb, dir, "enable", &ibs_config.op_enabled); oprofilefs_create_ulong(root->d_sb, dir, "max_count", diff --git a/drivers/oprofile/oprofile_perf.c b/drivers/oprofile/oprofile_perf.c index 52ad942df04e..923a245774fa 100644 --- a/drivers/oprofile/oprofile_perf.c +++ b/drivers/oprofile/oprofile_perf.c @@ -147,7 +147,7 @@ static int oprofile_perf_create_files(struct dentry *root) char buf[4]; snprintf(buf, sizeof buf, "%d", i); - dir = oprofilefs_mkdir(root->d_sb, root, buf); + dir = oprofilefs_mkdir(root, buf); oprofilefs_create_ulong(root->d_sb, dir, "enabled", &counter_config[i].enabled); oprofilefs_create_ulong(root->d_sb, dir, "event", &counter_config[i].event); oprofilefs_create_ulong(root->d_sb, dir, "count", &counter_config[i].count); diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c index 627dce478311..8cf2fa9710a4 100644 --- a/drivers/oprofile/oprofile_stats.c +++ b/drivers/oprofile/oprofile_stats.c @@ -46,14 +46,14 @@ void oprofile_create_stats_files(struct dentry *root) char buf[10]; int i; - dir = oprofilefs_mkdir(root->d_sb, root, "stats"); + dir = oprofilefs_mkdir(root, "stats"); if (!dir) return; for_each_possible_cpu(i) { cpu_buf = &per_cpu(op_cpu_buffer, i); snprintf(buf, 10, "cpu%d", i); - cpudir = oprofilefs_mkdir(root->d_sb, dir, buf); + cpudir = oprofilefs_mkdir(dir, buf); /* Strictly speaking access to these ulongs is racy, * but we can't simply lock them, and they are diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c index 2e2dd5ca7211..6a345724637f 100644 --- a/drivers/oprofile/oprofilefs.c +++ b/drivers/oprofile/oprofilefs.c @@ -211,28 +211,27 @@ int oprofilefs_create_file_perm(struct super_block *sb, struct dentry *root, } -struct dentry *oprofilefs_mkdir(struct super_block *sb, - struct dentry *root, char const *name) +struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name) { struct dentry *dentry; struct inode *inode; - mutex_lock(&root->d_inode->i_mutex); - dentry = d_alloc_name(root, name); + mutex_lock(&parent->d_inode->i_mutex); + dentry = d_alloc_name(parent, name); if (!dentry) { - mutex_unlock(&root->d_inode->i_mutex); + mutex_unlock(&parent->d_inode->i_mutex); return NULL; } - inode = oprofilefs_get_inode(sb, S_IFDIR | 0755); + inode = oprofilefs_get_inode(parent->d_sb, S_IFDIR | 0755); if (!inode) { dput(dentry); - mutex_unlock(&root->d_inode->i_mutex); + mutex_unlock(&parent->d_inode->i_mutex); return NULL; } inode->i_op = &simple_dir_inode_operations; inode->i_fop = &simple_dir_operations; d_add(dentry, inode); - mutex_unlock(&root->d_inode->i_mutex); + mutex_unlock(&parent->d_inode->i_mutex); return dentry; } diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h index 8a906b4034a7..957877e7a408 100644 --- a/include/linux/oprofile.h +++ b/include/linux/oprofile.h @@ -144,8 +144,7 @@ int oprofilefs_create_ro_atomic(struct super_block * sb, struct dentry * root, char const * name, atomic_t * val); /** create a directory */ -struct dentry * oprofilefs_mkdir(struct super_block * sb, struct dentry * root, - char const * name); +struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name); /** * Write the given asciz string to the given user buffer @buf, updating *offset