Linus, please do a
bk pull http://linux-ntfs.bkbits.net/ntfs-tng-2.5
Thanks! This is a small update to ntfs, mostly just to remove the compile
warnings generated by the now unused variables after Rusty Russell's changes.
And a few other bits and pieces (just cleanups).
The only code change is a micro optimization in the decompression engine
(thanks to Rusty for spotting it).
Best regards,
Anton
-- Anton Altaparmakov <aia21 at cantab.net> (replace at with @) Linux NTFS maintainer / IRC: #ntfs on irc.openprojects.net WWW: http://linux-ntfs.sf.net/, http://www-stu.christs.cam.ac.uk/~aia21/===================================================================
This will update the following files:
Documentation/filesystems/ntfs.txt | 6 ++++++ fs/ntfs/ChangeLog | 13 ++++++++++++- fs/ntfs/Makefile | 2 +- fs/ntfs/compress.c | 21 ++++++++++++--------- fs/ntfs/dir.c | 11 ++++++----- fs/ntfs/layout.h | 3 +-- fs/ntfs/namei.c | 5 +++-- 7 files changed, 41 insertions(+), 20 deletions(-)
through these ChangeSets:
<aia21@cantab.net> (02/06/19 1.548) NTFS: 2.0.9 release. Decompression engine now uses a single buffer and other cleanups. - Remove unused variables left over after Rusty's patch to the decompression engine. - Change buffer size in ntfs_readdir()/ntfs_filldir() to use NLS_MAX_CHARSET_SIZE. - Miscellaneous minor cleanups to comments.
<aia21@cantab.net> (02/06/19 1.549) NTFS: Fix typo.
diff -Nru a/Documentation/filesystems/ntfs.txt b/Documentation/filesystems/ntfs.txt --- a/Documentation/filesystems/ntfs.txt Wed Jun 19 11:27:29 2002 +++ b/Documentation/filesystems/ntfs.txt Wed Jun 19 11:27:29 2002 @@ -247,6 +247,12 @@ Note, a technical ChangeLog aimed at kernel hackers is in fs/ntfs/ChangeLog. +2.0.9: + - Change decompression engine to use a single buffer. This should not + affect performance except perhaps on the most heavy i/o on SMP + systems when accessing multiple compressed files from multiple + devices simultaneously. + - Minor updates and cleanups. 2.0.8: - Remove now obsolete show_inodes and posix mount option(s). - Restore show_sys_files mount option. diff -Nru a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog --- a/fs/ntfs/ChangeLog Wed Jun 19 11:27:29 2002 +++ b/fs/ntfs/ChangeLog Wed Jun 19 11:27:29 2002 @@ -23,6 +23,17 @@ them cleaner and make code reuse easier. - Want to use dummy inodes for address space i/o. +2.0.9 - Decompression engine now uses a single buffer and other cleanups. + + - Change decompression engine to use a single buffer protected by a + spin lock instead of per-CPU buffers. (Rusty Russel) + - Switch to using the new KM_BIO_SRC_IRQ for atomic kmaps. (Andrew + Morton) + - Change buffer size in ntfs_readdir()/ntfs_filldir() to use + NLS_MAX_CHARSET_SIZE which makes the buffers almost 1kiB each but + it also makes everything safer so it is a good thing. + - Miscellaneous minor cleanups to comments. + 2.0.8 - Major updates for handling of case sensitivity and dcache aliasing. Big thanks go to Al Viro and other inhabitants of #kernel for investing diff -Nru a/fs/ntfs/Makefile b/fs/ntfs/Makefile --- a/fs/ntfs/Makefile Wed Jun 19 11:27:29 2002 +++ b/fs/ntfs/Makefile Wed Jun 19 11:27:29 2002 @@ -5,7 +5,7 @@ ntfs-objs := aops.o attrib.o compress.o debug.o dir.o file.o inode.o mft.o \ mst.o namei.o super.o sysctl.o time.o unistr.o upcase.o -EXTRA_CFLAGS = -DNTFS_VERSION=\"2.0.8\" +EXTRA_CFLAGS = -DNTFS_VERSION=\"2.0.9\" ifeq ($(CONFIG_NTFS_DEBUG),y) EXTRA_CFLAGS += -DDEBUG diff -Nru a/fs/ntfs/compress.c b/fs/ntfs/compress.c --- a/fs/ntfs/compress.c Wed Jun 19 11:27:29 2002 +++ b/fs/ntfs/compress.c Wed Jun 19 11:27:29 2002 @@ -50,11 +50,13 @@ } ntfs_compression_constants; /** - * ntfs_compression_buffer - one buffer for the decompression engine. + * ntfs_compression_buffer - one buffer for the decompression engine */ static u8 *ntfs_compression_buffer = NULL; -/* This spinlock which protects it */ +/** + * ntfs_cb_lock - spinlock which protects ntfs_compression_buffer + */ static spinlock_t ntfs_cb_lock = SPIN_LOCK_UNLOCKED; /** @@ -66,8 +68,6 @@ */ int allocate_compression_buffers(void) { - int i, j; - BUG_ON(ntfs_compression_buffer); ntfs_compression_buffer = vmalloc(NTFS_MAX_CB_SIZE); @@ -83,8 +83,6 @@ */ void free_compression_buffers(void) { - int i; - BUG_ON(!ntfs_compression_buffer); vfree(ntfs_compression_buffer); ntfs_compression_buffer = NULL; @@ -592,7 +590,8 @@ /* * Get the compression buffer. We must not sleep any more - * until we are finished with it. */ + * until we are finished with it. + */ spin_lock(&ntfs_cb_lock); cb = ntfs_compression_buffer; @@ -668,7 +667,10 @@ if (page) memset(page_address(page) + cur_ofs, 0, cb_max_ofs - cur_ofs); - cb_pos += cb_max_ofs - cur_ofs; + /* + * No need to update cb_pos at this stage: + * cb_pos += cb_max_ofs - cur_ofs; + */ cur_ofs = cb_max_ofs; } } else if (vcn == start_vcn) { @@ -742,7 +744,8 @@ cb_pos, cb_size - (cb_pos - cb)); /* * We can sleep from now on, lock already dropped by - * ntfs_decompress. */ + * ntfs_decompress(). + */ if (err) { ntfs_error(vol->sb, "ntfs_decompress() failed in inode " "0x%Lx with error code %i. Skipping " diff -Nru a/fs/ntfs/dir.c b/fs/ntfs/dir.c --- a/fs/ntfs/dir.c Wed Jun 19 11:27:29 2002 +++ b/fs/ntfs/dir.c Wed Jun 19 11:27:29 2002 @@ -995,10 +995,10 @@ * @ie: current index entry * @name: buffer to use for the converted name * @dirent: vfs filldir callback context - * filldir: vfs filldir callback + * @filldir: vfs filldir callback * - * Convert the Unicode name to the loaded NLS and pass it to - * the filldir callback. + * Convert the Unicode @name to the loaded NLS and pass it to the @filldir + * callback. */ static inline int ntfs_filldir(ntfs_volume *vol, struct file *filp, ntfs_inode *ndir, const INDEX_TYPE index_type, @@ -1033,7 +1033,7 @@ } name_len = ntfs_ucstonls(vol, (uchar_t*)&ie->key.file_name.file_name, ie->key.file_name.file_name_length, &name, - NTFS_MAX_NAME_LEN * 3 + 1); + NTFS_MAX_NAME_LEN * NLS_MAX_CHARSET_SIZE + 1); if (name_len <= 0) { ntfs_debug("Skipping unrepresentable file."); return 0; @@ -1126,7 +1126,8 @@ * Allocate a buffer to store the current name being processed * converted to format determined by current NLS. */ - name = (u8*)kmalloc(NTFS_MAX_NAME_LEN * 3 + 1, GFP_NOFS); + name = (u8*)kmalloc(NTFS_MAX_NAME_LEN * NLS_MAX_CHARSET_SIZE + 1, + GFP_NOFS); if (!name) { err = -ENOMEM; goto put_unm_err_out; diff -Nru a/fs/ntfs/layout.h b/fs/ntfs/layout.h --- a/fs/ntfs/layout.h Wed Jun 19 11:27:29 2002 +++ b/fs/ntfs/layout.h Wed Jun 19 11:27:29 2002 @@ -948,8 +948,7 @@ data attribute. NOTE: Is a multiple of the cluster size. */ /* 30*/ s64 data_size; /* Byte size of actual data in data - attribute. NOTE: Only present when - lowest_vcn is 0. */ + attribute. */ /* 38*/ FILE_ATTR_FLAGS file_attributes; /* Flags describing the file. */ /* 3c*/ union { /* 3c*/ struct { diff -Nru a/fs/ntfs/namei.c b/fs/ntfs/namei.c --- a/fs/ntfs/namei.c Wed Jun 19 11:27:29 2002 +++ b/fs/ntfs/namei.c Wed Jun 19 11:27:29 2002 @@ -235,8 +235,9 @@ } nls_name.hash = full_name_hash(nls_name.name, nls_name.len); - // FIXME: Do we need dcache_lock or dparent_lock here or is the - // fact that i_sem is held on the parent inode sufficient? (AIA) + /* + * Note: No need for dparent_lock as i_sem is held on the parent inode. + */ /* Does a dentry matching the nls_name exist already? */ real_dent = d_lookup(dent->d_parent, &nls_name); diff -Nru a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog --- a/fs/ntfs/ChangeLog Wed Jun 19 11:27:30 2002 +++ b/fs/ntfs/ChangeLog Wed Jun 19 11:27:30 2002 @@ -26,7 +26,7 @@ 2.0.9 - Decompression engine now uses a single buffer and other cleanups. - Change decompression engine to use a single buffer protected by a - spin lock instead of per-CPU buffers. (Rusty Russel) + spin lock instead of per-CPU buffers. (Rusty Russell) - Switch to using the new KM_BIO_SRC_IRQ for atomic kmaps. (Andrew Morton) - Change buffer size in ntfs_readdir()/ntfs_filldir() to use
===================================================================
This BitKeeper patch contains the following changesets: aia21@cantab.net|ChangeSet|20020619102354|24989 aia21@cantab.net|ChangeSet|20020619094853|24993 aia21@cantab.net|ChangeSet|20020619080624|25748 aia21@cantab.net|ChangeSet|20020618221226|05503 aia21@cantab.net|ChangeSet|20020612170720|56511 aia21@cantab.net|ChangeSet|20020610011304|45406 aia21@cantab.net|ChangeSet|20020609060851|25935 aia21@cantab.net|ChangeSet|20020606195445|09279 aia21@cantab.net|ChangeSet|20020605191906|36417 aia21@cantab.net|ChangeSet|20020603073201|20682 ## Wrapped with gzip_uu ##
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