Optimize g_journal's superblock update by noting that the summary
information is neither read nor written so it need not be written out when updating the superblock. PR: 247425 Sponsored by: Netflix
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=362561
@ -68,7 +68,6 @@ g_journal_ufs_clean(struct mount *mp)
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static void
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static void
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g_journal_ufs_dirty(struct g_consumer *cp)
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g_journal_ufs_dirty(struct g_consumer *cp)
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{
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{
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struct fs_summary_info *fs_si;
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struct fs *fs;
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struct fs *fs;
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int error;
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int error;
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@ -81,15 +80,18 @@ g_journal_ufs_dirty(struct g_consumer *cp)
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("g_journal_ufs_dirty: non-NULL fs %p\n", fs));
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("g_journal_ufs_dirty: non-NULL fs %p\n", fs));
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return;
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return;
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}
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}
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/*
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* Do not use or change summary information, so free it now
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* to avoid unnecessarily writing it back out in ffs_sbput().
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*/
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g_free(fs->fs_csp);
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g_free(fs->fs_si);
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fs->fs_si = NULL;
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GJ_DEBUG(0, "clean=%d flags=0x%x", fs->fs_clean, fs->fs_flags);
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GJ_DEBUG(0, "clean=%d flags=0x%x", fs->fs_clean, fs->fs_flags);
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fs->fs_clean = 0;
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fs->fs_clean = 0;
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fs->fs_flags |= FS_NEEDSFSCK | FS_UNCLEAN;
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fs->fs_flags |= FS_NEEDSFSCK | FS_UNCLEAN;
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fs_si = fs->fs_si;
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fs->fs_si = NULL;
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error = ffs_sbput(cp, fs, fs->fs_sblockloc, g_use_g_write_data);
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error = ffs_sbput(cp, fs, fs->fs_sblockloc, g_use_g_write_data);
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fs->fs_si = fs_si;
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g_free(fs->fs_csp);
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g_free(fs->fs_si);
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g_free(fs);
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g_free(fs);
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if (error != 0) {
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if (error != 0) {
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GJ_DEBUG(0, "Cannot mark file system %s as dirty "
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GJ_DEBUG(0, "Cannot mark file system %s as dirty "
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