Date: Thu, 6 May 2010 13:26:34 GMT From: Zheng Liu <lz@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 177821 for review Message-ID: <201005061326.o46DQY23013930@repoman.freebsd.org>
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http://p4web.freebsd.org/@@177821?ac=10 Change 177821 by lz@gnehzuil-freebsd on 2010/05/06 13:26:28 Add related data structure. * Add a file named ext2_rsv_win.h. It defines some data structures * Add some fields in ext2fs.h and inode.h * Add init and destroy code in ext2_vfsops.c Affected files ... .. //depot/projects/soc2010/extfs/src/sys/fs/ext2fs/ext2_rsv_win.h#1 add .. //depot/projects/soc2010/extfs/src/sys/fs/ext2fs/ext2_vfsops.c#2 edit .. //depot/projects/soc2010/extfs/src/sys/fs/ext2fs/ext2fs.h#2 edit .. //depot/projects/soc2010/extfs/src/sys/fs/ext2fs/inode.h#2 edit Differences ... ==== //depot/projects/soc2010/extfs/src/sys/fs/ext2fs/ext2_vfsops.c#2 (text+ko) ==== @@ -581,6 +581,12 @@ if ((error = compute_sb_data(devvp, ump->um_e2fs->e2fs, ump->um_e2fs))) goto out; + /* Initial reservation window index and lock */ + bzero(&ump->um_e2fs->e2fs_rsv_win_lock, sizeof(struct mtx)); + mtx_init(&ump->um_e2fs->e2fs_rsv_win_lock, + "reservation window lock", NULL, MTX_SPIN); + RB_INIT(&ump->um_e2fs->e2fs_tree); + brelse(bp); bp = NULL; fs = ump->um_e2fs; @@ -680,6 +686,7 @@ g_topology_unlock(); PICKUP_GIANT(); vrele(ump->um_devvp); + mtx_destroy(&fs->e2fs_rsv_win_lock); free(fs->e2fs_gd, M_EXT2MNT); free(fs->e2fs_contigdirs, M_EXT2MNT); free(fs->e2fs, M_EXT2MNT); ==== //depot/projects/soc2010/extfs/src/sys/fs/ext2fs/ext2fs.h#2 (text+ko) ==== @@ -38,6 +38,8 @@ #define _FS_EXT2FS_EXT2_FS_H #include <sys/types.h> +#include <sys/lock.h> +#include <fs/ext2fs/ext2_rsv_win.h> /* * Special inode numbers @@ -174,6 +176,9 @@ char e2fs_wasvalid; /* valid at mount time */ off_t e2fs_maxfilesize; struct ext2_gd *e2fs_gd; /* Group Descriptors */ + + struct mtx e2fs_rsv_win_lock; /* Protect reservation window RB tree */ + struct ext2_rsv_win_tree e2fs_tree; /* Reservation window index */ }; /* ==== //depot/projects/soc2010/extfs/src/sys/fs/ext2fs/inode.h#2 (text+ko) ==== @@ -40,6 +40,7 @@ #include <sys/lock.h> #include <sys/queue.h> +#include <fs/ext2fs/ext2_rsv_win.h> #define ROOTINO ((ino_t)2) @@ -100,6 +101,8 @@ int32_t i_gen; /* Generation number. */ u_int32_t i_uid; /* File owner. */ u_int32_t i_gid; /* File group. */ + + struct ext2_rsv_win_info *i_rsv_winp; /* Reservation window info */ }; /*
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