summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-29 10:51:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-29 10:51:29 -0700
commit767fcbc80f63d7f08ff6c0858fe33583e6fdd327 (patch)
tree6ec5eb7277b36dbd06ce9833228a20e544ae0dc0
parentd2b6f8a179194de0ffc4886ffc2c4358d86047b8 (diff)
parenta3cc754ad9b80491e2db5ae6a5a956490654abb9 (diff)
Merge tag 'for_v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull quota, ext2, reiserfs updates from Jan Kara: - support for path (instead of device) based quotactl syscall (quotactl_path(2)) - ext2 conversion to kmap_local() - other minor cleanups & fixes * tag 'for_v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: fs/reiserfs/journal.c: delete useless variables fs/ext2: Replace kmap() with kmap_local_page() ext2: Match up ext2_put_page() with ext2_dotdot() and ext2_find_entry() fs/ext2/: fix misspellings using codespell tool quota: report warning limits for realtime space quotas quota: wire up quotactl_path quota: Add mountpath based quota support
-rw-r--r--arch/alpha/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/arm/tools/syscall.tbl1
-rw-r--r--arch/arm64/include/asm/unistd.h2
-rw-r--r--arch/arm64/include/asm/unistd32.h2
-rw-r--r--arch/ia64/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/m68k/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/microblaze/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/mips/kernel/syscalls/syscall_n32.tbl1
-rw-r--r--arch/mips/kernel/syscalls/syscall_n64.tbl1
-rw-r--r--arch/mips/kernel/syscalls/syscall_o32.tbl1
-rw-r--r--arch/parisc/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/powerpc/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/s390/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/sh/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/sparc/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/x86/entry/syscalls/syscall_32.tbl1
-rw-r--r--arch/x86/entry/syscalls/syscall_64.tbl1
-rw-r--r--arch/xtensa/kernel/syscalls/syscall.tbl1
-rw-r--r--fs/ext2/dir.c94
-rw-r--r--fs/ext2/ext2.h12
-rw-r--r--fs/ext2/namei.c34
-rw-r--r--fs/ext2/super.c2
-rw-r--r--fs/quota/quota.c50
-rw-r--r--fs/reiserfs/journal.c6
-rw-r--r--include/linux/syscalls.h2
-rw-r--r--include/uapi/asm-generic/unistd.h4
-rw-r--r--include/uapi/linux/dqblk_xfs.h5
-rw-r--r--kernel/sys_ni.c1
28 files changed, 168 insertions, 62 deletions
diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
index 02f0244e005c..c5f7e595adab 100644
--- a/arch/alpha/kernel/syscalls/syscall.tbl
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@@ -482,3 +482,4 @@
550 common process_madvise sys_process_madvise
551 common epoll_pwait2 sys_epoll_pwait2
552 common mount_setattr sys_mount_setattr
+553 common quotactl_path sys_quotactl_path
diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
index dcc1191291a2..90cbe207cf3e 100644
--- a/arch/arm/tools/syscall.tbl
+++ b/arch/arm/tools/syscall.tbl
@@ -456,3 +456,4 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 949788f5ba40..d1f7d35f986e 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -38,7 +38,7 @@
#define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE + 5)
#define __ARM_NR_COMPAT_END (__ARM_NR_COMPAT_BASE + 0x800)
-#define __NR_compat_syscalls 443
+#define __NR_compat_syscalls 444
#endif
#define __ARCH_WANT_SYS_CLONE
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index 3d874f624056..8361c5138e5f 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -893,6 +893,8 @@ __SYSCALL(__NR_process_madvise, sys_process_madvise)
__SYSCALL(__NR_epoll_pwait2, compat_sys_epoll_pwait2)
#define __NR_mount_setattr 442
__SYSCALL(__NR_mount_setattr, sys_mount_setattr)
+#define __NR_quotactl_path 443
+__SYSCALL(__NR_quotactl_path, sys_quotactl_path)
/*
* Please add new compat syscalls above this comment and update
diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl
index d89231166e19..c072cd459bb5 100644
--- a/arch/ia64/kernel/syscalls/syscall.tbl
+++ b/arch/ia64/kernel/syscalls/syscall.tbl
@@ -363,3 +363,4 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl
index 72bde6707dd3..5e9f81073ff4 100644
--- a/arch/m68k/kernel/syscalls/syscall.tbl
+++ b/arch/m68k/kernel/syscalls/syscall.tbl
@@ -442,3 +442,4 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
index d603a5ec9338..8e74d690c64d 100644
--- a/arch/microblaze/kernel/syscalls/syscall.tbl
+++ b/arch/microblaze/kernel/syscalls/syscall.tbl
@@ -448,3 +448,4 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
index 8fd8c1790941..6f397e56926f 100644
--- a/arch/mips/kernel/syscalls/syscall_n32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
@@ -381,3 +381,4 @@
440 n32 process_madvise sys_process_madvise
441 n32 epoll_pwait2 compat_sys_epoll_pwait2
442 n32 mount_setattr sys_mount_setattr
+443 n32 quotactl_path sys_quotactl_path
diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl
index 169f21438065..ab85a357c4fa 100644
--- a/arch/mips/kernel/syscalls/syscall_n64.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
@@ -357,3 +357,4 @@
440 n64 process_madvise sys_process_madvise
441 n64 epoll_pwait2 sys_epoll_pwait2
442 n64 mount_setattr sys_mount_setattr
+443 n64 quotactl_path sys_quotactl_path
diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
index 090d29ca80ff..9c4cd2b40b38 100644
--- a/arch/mips/kernel/syscalls/syscall_o32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
@@ -430,3 +430,4 @@
440 o32 process_madvise sys_process_madvise
441 o32 epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
442 o32 mount_setattr sys_mount_setattr
+443 o32 quotactl_path sys_quotactl_path
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index 271a92519683..80fba3f7d47b 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -440,3 +440,4 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index 0b2480cf3e47..f66f9c9b9d6c 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -522,3 +522,4 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 3abef2144dac..a421905c36e8 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -445,3 +445,4 @@
440 common process_madvise sys_process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path sys_quotactl_path
diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
index d08eebad6b7f..f68517aaa4f1 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -445,3 +445,4 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
index 84403a99039c..3ee82321504d 100644
--- a/arch/sparc/kernel/syscalls/syscall.tbl
+++ b/arch/sparc/kernel/syscalls/syscall.tbl
@@ -488,3 +488,4 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index a1c9f496fca6..f52a443eede0 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -447,3 +447,4 @@
440 i386 process_madvise sys_process_madvise
441 i386 epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
442 i386 mount_setattr sys_mount_setattr
+443 i386 quotactl_path sys_quotactl_path
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 7bf01cbe582f..7eb007b8cab5 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -364,6 +364,7 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
#
# Due to a historical design error, certain syscalls are numbered differently
diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
index 365a9b849224..c71cc45633de 100644
--- a/arch/xtensa/kernel/syscalls/syscall.tbl
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -413,3 +413,4 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 14aa45316ad2..14292dba3a12 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -190,13 +190,20 @@ fail:
return false;
}
+/*
+ * Calls to ext2_get_page()/ext2_put_page() must be nested according to the
+ * rules documented in kmap_local_page()/kunmap_local().
+ *
+ * NOTE: ext2_find_entry() and ext2_dotdot() act as a call to ext2_get_page()
+ * and should be treated as a call to ext2_get_page() for nesting purposes.
+ */
static struct page * ext2_get_page(struct inode *dir, unsigned long n,
- int quiet)
+ int quiet, void **page_addr)
{
struct address_space *mapping = dir->i_mapping;
struct page *page = read_mapping_page(mapping, n, NULL);
if (!IS_ERR(page)) {
- kmap(page);
+ *page_addr = kmap_local_page(page);
if (unlikely(!PageChecked(page))) {
if (PageError(page) || !ext2_check_page(page, quiet))
goto fail;
@@ -205,7 +212,7 @@ static struct page * ext2_get_page(struct inode *dir, unsigned long n,
return page;
fail:
- ext2_put_page(page);
+ ext2_put_page(page, *page_addr);
return ERR_PTR(-EIO);
}
@@ -276,7 +283,7 @@ ext2_readdir(struct file *file, struct dir_context *ctx)
for ( ; n < npages; n++, offset = 0) {
char *kaddr, *limit;
ext2_dirent *de;
- struct page *page = ext2_get_page(inode, n, 0);
+ struct page *page = ext2_get_page(inode, n, 0, (void **)&kaddr);
if (IS_ERR(page)) {
ext2_error(sb, __func__,
@@ -285,7 +292,6 @@ ext2_readdir(struct file *file, struct dir_context *ctx)
ctx->pos += PAGE_SIZE - offset;
return PTR_ERR(page);
}
- kaddr = page_address(page);
if (unlikely(need_revalidate)) {
if (offset) {
offset = ext2_validate_entry(kaddr, offset, chunk_mask);
@@ -300,7 +306,7 @@ ext2_readdir(struct file *file, struct dir_context *ctx)
if (de->rec_len == 0) {
ext2_error(sb, __func__,
"zero-length directory entry");
- ext2_put_page(page);
+ ext2_put_page(page, kaddr);
return -EIO;
}
if (de->inode) {
@@ -312,13 +318,13 @@ ext2_readdir(struct file *file, struct dir_context *ctx)
if (!dir_emit(ctx, de->name, de->name_len,
le32_to_cpu(de->inode),
d_type)) {
- ext2_put_page(page);
+ ext2_put_page(page, kaddr);
return 0;
}
}
ctx->pos += ext2_rec_len_from_disk(de->rec_len);
}
- ext2_put_page(page);
+ ext2_put_page(page, kaddr);
}
return 0;
}
@@ -332,9 +338,16 @@ ext2_readdir(struct file *file, struct dir_context *ctx)
* Entry is guaranteed to be valid.
*
* On Success ext2_put_page() should be called on *res_page.
+ *
+ * NOTE: Calls to ext2_get_page()/ext2_put_page() must be nested according to
+ * the rules documented in kmap_local_page()/kunmap_local().
+ *
+ * ext2_find_entry() and ext2_dotdot() act as a call to ext2_get_page() and
+ * should be treated as a call to ext2_get_page() for nesting purposes.
*/
struct ext2_dir_entry_2 *ext2_find_entry (struct inode *dir,
- const struct qstr *child, struct page **res_page)
+ const struct qstr *child, struct page **res_page,
+ void **res_page_addr)
{
const char *name = child->name;
int namelen = child->len;
@@ -344,12 +357,14 @@ struct ext2_dir_entry_2 *ext2_find_entry (struct inode *dir,
struct page *page = NULL;
struct ext2_inode_info *ei = EXT2_I(dir);
ext2_dirent * de;
+ void *page_addr;
if (npages == 0)
goto out;
/* OFFSET_CACHE */
*res_page = NULL;
+ *res_page_addr = NULL;
start = ei->i_dir_start_lookup;
if (start >= npages)
@@ -357,25 +372,25 @@ struct ext2_dir_entry_2 *ext2_find_entry (struct inode *dir,
n = start;
do {
char *kaddr;
- page = ext2_get_page(dir, n, 0);
+ page = ext2_get_page(dir, n, 0, &page_addr);
if (IS_ERR(page))
return ERR_CAST(page);
- kaddr = page_address(page);
+ kaddr = page_addr;
de = (ext2_dirent *) kaddr;
kaddr += ext2_last_byte(dir, n) - reclen;
while ((char *) de <= kaddr) {
if (de->rec_len == 0) {
ext2_error(dir->i_sb, __func__,
"zero-length directory entry");
- ext2_put_page(page);
+ ext2_put_page(page, page_addr);
goto out;
}
if (ext2_match(namelen, name, de))
goto found;
de = ext2_next_entry(de);
}
- ext2_put_page(page);
+ ext2_put_page(page, page_addr);
if (++n >= npages)
n = 0;
@@ -393,6 +408,7 @@ out:
found:
*res_page = page;
+ *res_page_addr = page_addr;
ei->i_dir_start_lookup = n;
return de;
}
@@ -402,15 +418,24 @@ found:
* (as a parameter - p).
*
* On Success ext2_put_page() should be called on *p.
+ *
+ * NOTE: Calls to ext2_get_page()/ext2_put_page() must be nested according to
+ * the rules documented in kmap_local_page()/kunmap_local().
+ *
+ * ext2_find_entry() and ext2_dotdot() act as a call to ext2_get_page() and
+ * should be treated as a call to ext2_get_page() for nesting purposes.
*/
-struct ext2_dir_entry_2 * ext2_dotdot (struct inode *dir, struct page **p)
+struct ext2_dir_entry_2 *ext2_dotdot(struct inode *dir, struct page **p,
+ void **pa)
{
- struct page *page = ext2_get_page(dir, 0, 0);
+ void *page_addr;
+ struct page *page = ext2_get_page(dir, 0, 0, &page_addr);
ext2_dirent *de = NULL;
if (!IS_ERR(page)) {
- de = ext2_next_entry((ext2_dirent *) page_address(page));
+ de = ext2_next_entry((ext2_dirent *) page_addr);
*p = page;
+ *pa = page_addr;
}
return de;
}
@@ -419,13 +444,14 @@ int ext2_inode_by_name(struct inode *dir, const struct qstr *child, ino_t *ino)
{
struct ext2_dir_entry_2 *de;
struct page *page;
+ void *page_addr;
- de = ext2_find_entry(dir, child, &page);
+ de = ext2_find_entry(dir, child, &page, &page_addr);
if (IS_ERR(de))
return PTR_ERR(de);
*ino = le32_to_cpu(de->inode);
- ext2_put_page(page);
+ ext2_put_page(page, page_addr);
return 0;
}
@@ -434,12 +460,12 @@ static int ext2_prepare_chunk(struct page *page, loff_t pos, unsigned len)
return __block_write_begin(page, pos, len, ext2_get_block);
}
-/* Releases the page */
void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
- struct page *page, struct inode *inode, int update_times)
+ struct page *page, void *page_addr, struct inode *inode,
+ int update_times)
{
loff_t pos = page_offset(page) +
- (char *) de - (char *) page_address(page);
+ (char *) de - (char *) page_addr;
unsigned len = ext2_rec_len_from_disk(de->rec_len);
int err;
@@ -449,7 +475,6 @@ void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
de->inode = cpu_to_le32(inode->i_ino);
ext2_set_de_type(de, inode);
err = ext2_commit_chunk(page, pos, len);
- ext2_put_page(page);
if (update_times)
dir->i_mtime = dir->i_ctime = current_time(dir);
EXT2_I(dir)->i_flags &= ~EXT2_BTREE_FL;
@@ -468,10 +493,10 @@ int ext2_add_link (struct dentry *dentry, struct inode *inode)
unsigned reclen = EXT2_DIR_REC_LEN(namelen);
unsigned short rec_len, name_len;
struct page *page = NULL;
+ void *page_addr = NULL;
ext2_dirent * de;
unsigned long npages = dir_pages(dir);
unsigned long n;
- char *kaddr;
loff_t pos;
int err;
@@ -481,14 +506,15 @@ int ext2_add_link (struct dentry *dentry, struct inode *inode)
* to protect that region.
*/
for (n = 0; n <= npages; n++) {
+ char *kaddr;
char *dir_end;
- page = ext2_get_page(dir, n, 0);
+ page = ext2_get_page(dir, n, 0, &page_addr);
err = PTR_ERR(page);
if (IS_ERR(page))
goto out;
lock_page(page);
- kaddr = page_address(page);
+ kaddr = page_addr;
dir_end = kaddr + ext2_last_byte(dir, n);
de = (ext2_dirent *)kaddr;
kaddr += PAGE_SIZE - reclen;
@@ -519,14 +545,14 @@ int ext2_add_link (struct dentry *dentry, struct inode *inode)
de = (ext2_dirent *) ((char *) de + rec_len);
}
unlock_page(page);
- ext2_put_page(page);
+ ext2_put_page(page, page_addr);
}
BUG();
return -EINVAL;
got_it:
pos = page_offset(page) +
- (char*)de - (char*)page_address(page);
+ (char *)de - (char *)page_addr;
err = ext2_prepare_chunk(page, pos, rec_len);
if (err)
goto out_unlock;
@@ -546,7 +572,7 @@ got_it:
mark_inode_dirty(dir);
/* OFFSET_CACHE */
out_put:
- ext2_put_page(page);
+ ext2_put_page(page, page_addr);
out:
return err;
out_unlock:
@@ -556,7 +582,7 @@ out_unlock:
/*
* ext2_delete_entry deletes a directory entry by merging it with the
- * previous entry. Page is up-to-date. Releases the page.
+ * previous entry. Page is up-to-date.
*/
int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page )
{
@@ -594,7 +620,6 @@ int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page )
EXT2_I(inode)->i_flags &= ~EXT2_BTREE_FL;
mark_inode_dirty(inode);
out:
- ext2_put_page(page);
return err;
}
@@ -644,6 +669,7 @@ fail:
*/
int ext2_empty_dir (struct inode * inode)
{
+ void *page_addr = NULL;
struct page *page = NULL;
unsigned long i, npages = dir_pages(inode);
int dir_has_error = 0;
@@ -651,14 +677,14 @@ int ext2_empty_dir (struct inode * inode)
for (i = 0; i < npages; i++) {
char *kaddr;
ext2_dirent * de;
- page = ext2_get_page(inode, i, dir_has_error);
+ page = ext2_get_page(inode, i, dir_has_error, &page_addr);
if (IS_ERR(page)) {
dir_has_error = 1;
continue;
}
- kaddr = page_address(page);
+ kaddr = page_addr;
de = (ext2_dirent *)kaddr;
kaddr += ext2_last_byte(inode, i) - EXT2_DIR_REC_LEN(1);
@@ -684,12 +710,12 @@ int ext2_empty_dir (struct inode * inode)
}
de = ext2_next_entry(de);
}
- ext2_put_page(page);
+ ext2_put_page(page, page_addr);
}
return 1;
not_empty:
- ext2_put_page(page);
+ ext2_put_page(page, page_addr);
return 0;
}
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index 23ffe5b96010..b0a694820cb7 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -738,14 +738,16 @@ extern int ext2_add_link (struct dentry *, struct inode *);
extern int ext2_inode_by_name(struct inode *dir,
const struct qstr *child, ino_t *ino);
extern int ext2_make_empty(struct inode *, struct inode *);
-extern struct ext2_dir_entry_2 * ext2_find_entry (struct inode *,const struct qstr *, struct page **);
+extern struct ext2_dir_entry_2 *ext2_find_entry(struct inode *, const struct qstr *,
+ struct page **, void **res_page_addr);
extern int ext2_delete_entry (struct ext2_dir_entry_2 *, struct page *);
extern int ext2_empty_dir (struct inode *);
-extern struct ext2_dir_entry_2 * ext2_dotdot (struct inode *, struct page **);
-extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page *, struct inode *, int);
-static inline void ext2_put_page(struct page *page)
+extern struct ext2_dir_entry_2 *ext2_dotdot(struct inode *dir, struct page **p, void **pa);
+extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page *, void *,
+ struct inode *, int);
+static inline void ext2_put_page(struct page *page, void *page_addr)
{
- kunmap(page);
+ kunmap_local(page_addr);
put_page(page);
}
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index c03fc3c1533e..c6b8bba73031 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -281,19 +281,21 @@ static int ext2_unlink(struct inode * dir, struct dentry *dentry)
struct inode * inode = d_inode(dentry);
struct ext2_dir_entry_2 * de;
struct page * page;
+ void *page_addr;
int err;
err = dquot_initialize(dir);
if (err)
goto out;
- de = ext2_find_entry(dir, &dentry->d_name, &page);
+ de = ext2_find_entry(dir, &dentry->d_name, &page, &page_addr);
if (IS_ERR(de)) {
err = PTR_ERR(de);
goto out;
}
err = ext2_delete_entry (de, page);
+ ext2_put_page(page, page_addr);
if (err)
goto out;
@@ -328,8 +330,10 @@ static int ext2_rename (struct user_namespace * mnt_userns,
struct inode * old_inode = d_inode(old_dentry);
struct inode * new_inode = d_inode(new_dentry);
struct page * dir_page = NULL;
+ void *dir_page_addr;
struct ext2_dir_entry_2 * dir_de = NULL;
struct page * old_page;
+ void *old_page_addr;
struct ext2_dir_entry_2 * old_de;
int err;
@@ -344,7 +348,8 @@ static int ext2_rename (struct user_namespace * mnt_userns,
if (err)
goto out;
- old_de = ext2_find_entry(old_dir, &old_dentry->d_name, &old_page);
+ old_de = ext2_find_entry(old_dir, &old_dentry->d_name, &old_page,
+ &old_page_addr);
if (IS_ERR(old_de)) {
err = PTR_ERR(old_de);
goto out;
@@ -352,12 +357,13 @@ static int ext2_rename (struct user_namespace * mnt_userns,
if (S_ISDIR(old_inode->i_mode)) {
err = -EIO;
- dir_de = ext2_dotdot(old_inode, &dir_page);
+ dir_de = ext2_dotdot(old_inode, &dir_page, &dir_page_addr);
if (!dir_de)
goto out_old;
}
if (new_inode) {
+ void *page_addr;
struct page *new_page;
struct ext2_dir_entry_2 *new_de;
@@ -365,12 +371,14 @@ static int ext2_rename (struct user_namespace * mnt_userns,
if (dir_de && !ext2_empty_dir (new_inode))
goto out_dir;
- new_de = ext2_find_entry(new_dir, &new_dentry->d_name, &new_page);
+ new_de = ext2_find_entry(new_dir, &new_dentry->d_name,
+ &new_page, &page_addr);
if (IS_ERR(new_de)) {
err = PTR_ERR(new_de);
goto out_dir;
}
- ext2_set_link(new_dir, new_de, new_page, old_inode, 1);
+ ext2_set_link(new_dir, new_de, new_page, page_addr, old_inode, 1);
+ ext2_put_page(new_page, page_addr);
new_inode->i_ctime = current_time(new_inode);
if (dir_de)
drop_nlink(new_inode);
@@ -390,23 +398,25 @@ static int ext2_rename (struct user_namespace * mnt_userns,
old_inode->i_ctime = current_time(old_inode);
mark_inode_dirty(old_inode);
- ext2_delete_entry (old_de, old_page);
+ ext2_delete_entry(old_de, old_page);
if (dir_de) {
if (old_dir != new_dir)
- ext2_set_link(old_inode, dir_de, dir_page, new_dir, 0);
- else
- ext2_put_page(dir_page);
+ ext2_set_link(old_inode, dir_de, dir_page,
+ dir_page_addr, new_dir, 0);
+
+ ext2_put_page(dir_page, dir_page_addr);
inode_dec_link_count(old_dir);
}
- return 0;
+ ext2_put_page(old_page, old_page_addr);
+ return 0;
out_dir:
if (dir_de)
- ext2_put_page(dir_page);
+ ext2_put_page(dir_page, dir_page_addr);
out_old:
- ext2_put_page(old_page);
+ ext2_put_page(old_page, old_page_addr);
out:
return err;
}
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 6c4753277916..d2fd9707e953 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -1104,7 +1104,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
get_random_bytes(&sbi->s_next_generation, sizeof(u32));
spin_lock_init(&sbi->s_next_gen_lock);
- /* per fileystem reservation list head & lock */
+ /* per filesystem reservation list head & lock */
spin_lock_init(&sbi->s_rsv_window_lock);
sbi->s_rsv_window_root = RB_ROOT;
/*
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 6d16b2be5ac4..05e4bd9ab6d6 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -17,6 +17,7 @@
#include <linux/capability.h>
#include <linux/quotaops.h>
#include <linux/types.h>
+#include <linux/mount.h>
#include <linux/writeback.h>
#include <linux/nospec.h>
#include "compat.h"
@@ -471,6 +472,7 @@ static int quota_getstatev(struct super_block *sb, int type,
fqs->qs_rtbtimelimit = state.s_state[type].rt_spc_timelimit;
fqs->qs_bwarnlimit = state.s_state[type].spc_warnlimit;
fqs->qs_iwarnlimit = state.s_state[type].ino_warnlimit;
+ fqs->qs_rtbwarnlimit = state.s_state[type].rt_spc_warnlimit;
/* Inodes may be allocated even if inactive; copy out if present */
if (state.s_state[USRQUOTA].ino) {
@@ -827,8 +829,6 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
}
}
-#ifdef CONFIG_BLOCK
-
/* Return 1 if 'cmd' will block on frozen filesystem */
static int quotactl_cmd_write(int cmd)
{
@@ -850,7 +850,6 @@ static int quotactl_cmd_write(int cmd)
}
return 1;
}
-#endif /* CONFIG_BLOCK */
/* Return true if quotactl command is manipulating quota on/off state */
static bool quotactl_cmd_onoff(int cmd)
@@ -968,3 +967,48 @@ out:
path_put(pathp);
return ret;
}
+
+SYSCALL_DEFINE4(quotactl_path, unsigned int, cmd, const char __user *,
+ mountpoint, qid_t, id, void __user *, addr)
+{
+ struct super_block *sb;
+ struct path mountpath;
+ unsigned int cmds = cmd >> SUBCMDSHIFT;
+ unsigned int type = cmd & SUBCMDMASK;
+ int ret;
+
+ if (type >= MAXQUOTAS)
+ return -EINVAL;
+
+ ret = user_path_at(AT_FDCWD, mountpoint,
+ LOOKUP_FOLLOW | LOOKUP_AUTOMOUNT, &mountpath);
+ if (ret)
+ return ret;
+
+ sb = mountpath.mnt->mnt_sb;
+
+ if (quotactl_cmd_write(cmds)) {
+ ret = mnt_want_write(mountpath.mnt);
+ if (ret)
+ goto out;
+ }
+
+ if (quotactl_cmd_onoff(cmds))
+ down_write(&sb->s_umount);
+ else
+ down_read(&sb->s_umount);
+
+ ret = do_quotactl(sb, type, cmds, id, addr, ERR_PTR(-EINVAL));
+
+ if (quotactl_cmd_onoff(cmds))
+ up_write(&sb->s_umount);
+ else
+ up_read(&sb->s_umount);
+
+ if (quotactl_cmd_write(cmds))
+ mnt_drop_write(mountpath.mnt);
+out:
+ path_put(&mountpath);
+
+ return ret;
+}
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index e98f99338f8f..9edc8e2b154e 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -461,7 +461,6 @@ int reiserfs_in_journal(struct super_block *sb,
b_blocknr_t * next_zero_bit)
{
struct reiserfs_journal *journal = SB_JOURNAL(sb);
- struct reiserfs_journal_cnode *cn;
struct reiserfs_list_bitmap *jb;
int i;
unsigned long bl;
@@ -497,13 +496,12 @@ int reiserfs_in_journal(struct super_block *sb,
bl = bmap_nr * (sb->s_blocksize << 3) + bit_nr;
/* is it in any old transactions? */
if (search_all
- && (cn =
- get_journal_hash_dev(sb, journal->j_list_hash_table, bl))) {
+ && (get_journal_hash_dev(sb, journal->j_list_hash_table, bl))) {
return 1;
}
/* is it in the current transaction. This should never happen */
- if ((cn = get_journal_hash_dev(sb, journal->j_hash_table, bl))) {
+ if ((get_journal_hash_dev(sb, journal->j_hash_table, bl))) {
BUG();
return 1;
}
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 2839dc9a7c01..a672bbe28577 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -483,6 +483,8 @@ asmlinkage long sys_pipe2(int __user *fildes, int flags);
/* fs/quota.c */
asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
qid_t id, void __user *addr);
+asmlinkage long sys_quotactl_path(unsigned int cmd, const char __user *mountpoint,
+ qid_t id, void __user *addr);
/* fs/readdir.c */
asmlinkage long sys_getdents64(unsigned int fd,
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index ce58cff99b66..739c839d28fe 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -863,9 +863,11 @@ __SYSCALL(__NR_process_madvise, sys_process_madvise)
__SC_COMP(__NR_epoll_pwait2, sys_epoll_pwait2, compat_sys_epoll_pwait2)
#define __NR_mount_setattr 442
__SYSCALL(__NR_mount_setattr, sys_mount_setattr)
+#define __NR_quotactl_path 443
+__SYSCALL(__NR_quotactl_path, sys_quotactl_path)
#undef __NR_syscalls
-#define __NR_syscalls 443
+#define __NR_syscalls 444
/*
* 32 bit systems traditionally used different
diff --git a/include/uapi/linux/dqblk_xfs.h b/include/uapi/linux/dqblk_xfs.h
index c71d909addda..8cda3e62e0e7 100644
--- a/include/uapi/linux/dqblk_xfs.h
+++ b/include/uapi/linux/dqblk_xfs.h
@@ -219,7 +219,10 @@ struct fs_quota_statv {
__s32 qs_rtbtimelimit;/* limit for rt blks timer */
__u16 qs_bwarnlimit; /* limit for num warnings */
__u16 qs_iwarnlimit; /* limit for num warnings */
- __u64 qs_pad2[8]; /* for future proofing */
+ __u16 qs_rtbwarnlimit;/* limit for rt blks warnings */
+ __u16 qs_pad3;
+ __u32 qs_pad4;
+ __u64 qs_pad2[7]; /* for future proofing */
};
#endif /* _LINUX_DQBLK_XFS_H */
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 19aa806890d5..d24431782414 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -99,6 +99,7 @@ COND_SYSCALL(flock);
/* fs/quota.c */
COND_SYSCALL(quotactl);
+COND_SYSCALL(quotactl_path);
/* fs/readdir.c */