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From 7c51addf7912a94320e6b148bd66f2dbf274c533 Mon Sep 17 00:00:00 2001
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From: Pranith Kumar K <pkarampu@redhat.com>
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Date: Mon, 11 Mar 2019 14:04:39 +0530
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Subject: [PATCH 464/465] storage/posix: Remove nr_files usage
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nr_files is supposed to represent the number of files opened in posix.
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Present logic doesn't seem to handle anon-fds because of which the
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counts would always be wrong.
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I don't remember anyone using this value in debugging any problem probably
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because we always have 'ls -l /proc/<pid>/fd' which not only prints the
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fds that are active but also prints their paths. It also handles directories
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and anon-fds which actually opened the file. So removing this code
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instead of fixing the buggy logic to have the nr_files.
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> fixes bz#1688106
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> Change-Id: Ibf8713fdfdc1ef094e08e6818152637206a54040
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> Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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> (Cherry pick from commit f5987d38f216a3142dfe45f03bf66ff4827d9b55)
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> (Reviewed on upstream link https://review.gluster.org/#/c/glusterfs/+/22333/)
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Change-Id: Ibf8713fdfdc1ef094e08e6818152637206a54040
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BUG: 1851989
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Signed-off-by: Mohit Agrawal<moagrawa@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/209468
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
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---
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 xlators/storage/posix/src/posix-common.c       | 2 --
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 xlators/storage/posix/src/posix-entry-ops.c    | 2 --
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 xlators/storage/posix/src/posix-inode-fd-ops.c | 2 --
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 xlators/storage/posix/src/posix.h              | 1 -
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 4 files changed, 7 deletions(-)
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diff --git a/xlators/storage/posix/src/posix-common.c b/xlators/storage/posix/src/posix-common.c
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index ac53796..b317627 100644
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--- a/xlators/storage/posix/src/posix-common.c
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+++ b/xlators/storage/posix/src/posix-common.c
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@@ -128,7 +128,6 @@ posix_priv(xlator_t *this)
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     gf_proc_dump_write("max_read", "%" PRId64, GF_ATOMIC_GET(priv->read_value));
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     gf_proc_dump_write("max_write", "%" PRId64,
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                        GF_ATOMIC_GET(priv->write_value));
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-    gf_proc_dump_write("nr_files", "%" PRId64, GF_ATOMIC_GET(priv->nr_files));
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     return 0;
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 }
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@@ -815,7 +814,6 @@ posix_init(xlator_t *this)
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     }
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     LOCK_INIT(&_private->lock);
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-    GF_ATOMIC_INIT(_private->nr_files, 0);
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     GF_ATOMIC_INIT(_private->read_value, 0);
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     GF_ATOMIC_INIT(_private->write_value, 0);
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diff --git a/xlators/storage/posix/src/posix-entry-ops.c b/xlators/storage/posix/src/posix-entry-ops.c
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index 65650b3..b3a5381 100644
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--- a/xlators/storage/posix/src/posix-entry-ops.c
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+++ b/xlators/storage/posix/src/posix-entry-ops.c
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@@ -2243,8 +2243,6 @@ fill_stat:
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         gf_msg(this->name, GF_LOG_WARNING, 0, P_MSG_FD_PATH_SETTING_FAILED,
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                "failed to set the fd context path=%s fd=%p", real_path, fd);
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-    GF_ATOMIC_INC(priv->nr_files);
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-
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     op_ret = 0;
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 out:
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diff --git a/xlators/storage/posix/src/posix-inode-fd-ops.c b/xlators/storage/posix/src/posix-inode-fd-ops.c
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index d135d8b..81f4a6b 100644
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--- a/xlators/storage/posix/src/posix-inode-fd-ops.c
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+++ b/xlators/storage/posix/src/posix-inode-fd-ops.c
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@@ -1605,7 +1605,6 @@ posix_open(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
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         gf_msg(this->name, GF_LOG_WARNING, 0, P_MSG_FD_PATH_SETTING_FAILED,
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                "failed to set the fd context path=%s fd=%p", real_path, fd);
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-    GF_ATOMIC_INC(priv->nr_files);
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     op_ret = 0;
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 out:
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@@ -2526,7 +2525,6 @@ posix_release(xlator_t *this, fd_t *fd)
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     if (!priv)
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         goto out;
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-    GF_ATOMIC_DEC(priv->nr_files);
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 out:
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     return 0;
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 }
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diff --git a/xlators/storage/posix/src/posix.h b/xlators/storage/posix/src/posix.h
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index 61495a7..124dbb4 100644
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--- a/xlators/storage/posix/src/posix.h
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+++ b/xlators/storage/posix/src/posix.h
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@@ -154,7 +154,6 @@ struct posix_private {
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     gf_atomic_t read_value;  /* Total read, from init */
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     gf_atomic_t write_value; /* Total write, from init */
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-    gf_atomic_t nr_files;
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     /*
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        In some cases, two exported volumes may reside on the same
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        partition on the server. Sending statvfs info for both
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-- 
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1.8.3.1
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