The patch titled affs: convert s_bmlock into a mutex has been added to the -mm tree. Its filename is affs-convert-s_bmlock-into-a-mutex.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: affs: convert s_bmlock into a mutex From: Matthias Kaehlcke <matthias@xxxxxxxxxxxx> The semaphore s_bmlock is used as a mutex. Convert it to the mutex API. Signed-off-by: Matthias Kaehlcke <matthias@xxxxxxxxxxxx> Cc: Roman Zippel <zippel@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/affs/affs.h | 3 ++- fs/affs/bitmap.c | 18 +++++++++--------- fs/affs/super.c | 2 +- 3 files changed, 12 insertions(+), 11 deletions(-) diff -puN fs/affs/affs.h~affs-convert-s_bmlock-into-a-mutex fs/affs/affs.h --- a/fs/affs/affs.h~affs-convert-s_bmlock-into-a-mutex +++ a/fs/affs/affs.h @@ -2,6 +2,7 @@ #include <linux/fs.h> #include <linux/buffer_head.h> #include <linux/amigaffs.h> +#include <linux/mutex.h> /* AmigaOS allows file names with up to 30 characters length. * Names longer than that will be silently truncated. If you @@ -98,7 +99,7 @@ struct affs_sb_info { gid_t s_gid; /* gid to override */ umode_t s_mode; /* mode to override */ struct buffer_head *s_root_bh; /* Cached root block. */ - struct semaphore s_bmlock; /* Protects bitmap access. */ + struct mutex s_bmlock; /* Protects bitmap access. */ struct affs_bm_info *s_bitmap; /* Bitmap infos. */ u32 s_bmap_count; /* # of bitmap blocks. */ u32 s_bmap_bits; /* # of bits in one bitmap blocks */ diff -puN fs/affs/bitmap.c~affs-convert-s_bmlock-into-a-mutex fs/affs/bitmap.c --- a/fs/affs/bitmap.c~affs-convert-s_bmlock-into-a-mutex +++ a/fs/affs/bitmap.c @@ -45,14 +45,14 @@ affs_count_free_blocks(struct super_bloc if (sb->s_flags & MS_RDONLY) return 0; - down(&AFFS_SB(sb)->s_bmlock); + mutex_lock(&AFFS_SB(sb)->s_bmlock); bm = AFFS_SB(sb)->s_bitmap; free = 0; for (i = AFFS_SB(sb)->s_bmap_count; i > 0; bm++, i--) free += bm->bm_free; - up(&AFFS_SB(sb)->s_bmlock); + mutex_unlock(&AFFS_SB(sb)->s_bmlock); return free; } @@ -76,7 +76,7 @@ affs_free_block(struct super_block *sb, bit = blk % sbi->s_bmap_bits; bm = &sbi->s_bitmap[bmap]; - down(&sbi->s_bmlock); + mutex_lock(&sbi->s_bmlock); bh = sbi->s_bmap_bh; if (sbi->s_last_bmap != bmap) { @@ -105,19 +105,19 @@ affs_free_block(struct super_block *sb, sb->s_dirt = 1; bm->bm_free++; - up(&sbi->s_bmlock); + mutex_unlock(&sbi->s_bmlock); return; err_free: affs_warning(sb,"affs_free_block","Trying to free block %u which is already free", block); - up(&sbi->s_bmlock); + mutex_unlock(&sbi->s_bmlock); return; err_bh_read: affs_error(sb,"affs_free_block","Cannot read bitmap block %u", bm->bm_key); sbi->s_bmap_bh = NULL; sbi->s_last_bmap = ~0; - up(&sbi->s_bmlock); + mutex_unlock(&sbi->s_bmlock); return; err_range: @@ -168,7 +168,7 @@ affs_alloc_block(struct inode *inode, u3 bmap = blk / sbi->s_bmap_bits; bm = &sbi->s_bitmap[bmap]; - down(&sbi->s_bmlock); + mutex_lock(&sbi->s_bmlock); if (bm->bm_free) goto find_bmap_bit; @@ -249,7 +249,7 @@ find_bit: mark_buffer_dirty(bh); sb->s_dirt = 1; - up(&sbi->s_bmlock); + mutex_unlock(&sbi->s_bmlock); pr_debug("%d\n", blk); return blk; @@ -259,7 +259,7 @@ err_bh_read: sbi->s_bmap_bh = NULL; sbi->s_last_bmap = ~0; err_full: - up(&sbi->s_bmlock); + mutex_unlock(&sbi->s_bmlock); pr_debug("failed\n"); return 0; } diff -puN fs/affs/super.c~affs-convert-s_bmlock-into-a-mutex fs/affs/super.c --- a/fs/affs/super.c~affs-convert-s_bmlock-into-a-mutex +++ a/fs/affs/super.c @@ -290,7 +290,7 @@ static int affs_fill_super(struct super_ if (!sbi) return -ENOMEM; sb->s_fs_info = sbi; - init_MUTEX(&sbi->s_bmlock); + mutex_init(&sbi->s_bmlock); if (!parse_options(data,&uid,&gid,&i,&reserved,&root_block, &blocksize,&sbi->s_prefix, _ Patches currently in -mm which might be from matthias@xxxxxxxxxxxx are arm-omap1-n770-convert-audio_pwr_sem-in-a-mutex.patch arm-omap1-n770-convert-audio_pwr_sem-in-a-mutex-fix.patch pxafb-convert-ctrlr_sem-in-a-mutex.patch sa1100fb-convert-ctrlr_sem-in-a-mutex.patch affs-convert-s_bmlock-into-a-mutex.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html