The patch titled
ext4: 48bit i_file_acl
has been added to the -mm tree. Its filename is
ext4_48bit_i_file_acl.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: ext4: 48bit i_file_acl
From: Badari Pulavarty <pbadari@xxxxxxxxxx>
As we are planning to support 48-bit block numbers for ext4, we need to
support 48-bit block numbers for extended attributes. In the short term, we
can do this by reuse (on-disk) 16-bit padding (linux2.i_pad1 currently used
only by "hurd") as high order bits for xattr. This patch basically does that.
Signed-off-by: Badari Pulavarty <pbadari@xxxxxxxxxx>
Signed-off-by: Dave Kleikamp <shaggy@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/ext4/inode.c | 10 ++++++++++
include/linux/ext4_fs.h | 6 ++++--
2 files changed, 14 insertions(+), 2 deletions(-)
diff -puN fs/ext4/inode.c~ext4_48bit_i_file_acl fs/ext4/inode.c
--- a/fs/ext4/inode.c~ext4_48bit_i_file_acl
+++ a/fs/ext4/inode.c
@@ -2643,6 +2643,11 @@ void ext4_read_inode(struct inode * inod
ei->i_frag_size = raw_inode->i_fsize;
#endif
ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl);
+ if ((sizeof(sector_t) > 4) &&
+ (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
+ cpu_to_le32(EXT4_OS_HURD)))
+ ei->i_file_acl |=
+ ((__u64)le16_to_cpu(raw_inode->i_file_acl_high)) << 32;
if (!S_ISREG(inode->i_mode)) {
ei->i_dir_acl = le32_to_cpu(raw_inode->i_dir_acl);
} else {
@@ -2776,6 +2781,11 @@ static int ext4_do_update_inode(handle_t
raw_inode->i_frag = ei->i_frag_no;
raw_inode->i_fsize = ei->i_frag_size;
#endif
+ if ((sizeof(sector_t) > 4) &&
+ (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
+ cpu_to_le32(EXT4_OS_HURD)))
+ raw_inode->i_file_acl_high =
+ cpu_to_le16(ei->i_file_acl >> 32);
raw_inode->i_file_acl = cpu_to_le32(ei->i_file_acl);
if (!S_ISREG(inode->i_mode)) {
raw_inode->i_dir_acl = cpu_to_le32(ei->i_dir_acl);
diff -puN include/linux/ext4_fs.h~ext4_48bit_i_file_acl include/linux/ext4_fs.h
--- a/include/linux/ext4_fs.h~ext4_48bit_i_file_acl
+++ a/include/linux/ext4_fs.h
@@ -298,7 +298,7 @@ struct ext4_inode {
struct {
__u8 l_i_frag; /* Fragment number */
__u8 l_i_fsize; /* Fragment size */
- __u16 i_pad1;
+ __le16 l_i_file_acl_high;
__le16 l_i_uid_high; /* these 2 fields */
__le16 l_i_gid_high; /* were reserved2[0] */
__u32 l_i_reserved2;
@@ -314,7 +314,7 @@ struct ext4_inode {
struct {
__u8 m_i_frag; /* Fragment number */
__u8 m_i_fsize; /* Fragment size */
- __u16 m_pad1;
+ __le16 m_i_file_acl_high;
__u32 m_i_reserved2[2];
} masix2;
} osd2; /* OS dependent 2 */
@@ -328,6 +328,7 @@ struct ext4_inode {
#define i_reserved1 osd1.linux1.l_i_reserved1
#define i_frag osd2.linux2.l_i_frag
#define i_fsize osd2.linux2.l_i_fsize
+#define i_file_acl_high osd2.linux2.l_i_file_acl_high
#define i_uid_low i_uid
#define i_gid_low i_gid
#define i_uid_high osd2.linux2.l_i_uid_high
@@ -348,6 +349,7 @@ struct ext4_inode {
#define i_reserved1 osd1.masix1.m_i_reserved1
#define i_frag osd2.masix2.m_i_frag
#define i_fsize osd2.masix2.m_i_fsize
+#define i_file_acl_high osd2.masix2.m_i_file_acl_high
#define i_reserved2 osd2.masix2.m_i_reserved2
#endif /* defined(__KERNEL__) || defined(__linux__) */
_
Patches currently in -mm which might be from pbadari@xxxxxxxxxx are
64bit_jbd2_core.patch
ext4_48bit_i_file_acl.patch
spinlock-debug-all-cpu-backtrace.patch
spinlock-debug-all-cpu-backtrace-fix.patch
spinlock-debug-all-cpu-backtrace-fix-2.patch
spinlock-debug-all-cpu-backtrace-fix-3.patch
slab-reduce-numa-text-size-tidy-fix.patch
pass-io-size-to-batch_write-address-space-operation.patch
dio-centralize-completion-in-dio_complete.patch
dio-call-blk_run_address_space-once-per-op.patch
dio-formalize-bio-counters-as-a-dio-reference-count.patch
dio-remove-duplicate-bio-wait-code.patch
dio-only-call-aio_complete-after-returning-eiocbqueued.patch
-
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